The latest lab file on our download server, "fritzbox-XXXX-Labor-xxxx.zip", contains

• the lab version for your FRITZ!Box
• this "infolab-en.txt" file with important information on this lab version
• information, feedback options, and the file at en.avm.de/fritz-lab

Neue Features:

• Substitute connection: Greater fallback protection for the internet connection
• Optimized parental controls
• New upload sharing - Sharing files easier than ever
• FRITZ!Box 7590 AX now also usable as a Mesh Repeater via Wi-Fi
• More possibilities in the smart home

New Features and Improvements in FRITZ!OS 8.10

This FRITZ! Lab contains new functions fresh from the AVM development team and gives a preview of upcoming FRITZ!OS features in the next major update. It also contains the latest developments in the areas of security and energy efficiency.

The FRITZ! Lab launched adds additional control functions to the home network, increases fallback protection for the internet connection, and optimizes the smart home. For the first time, this FRITZ! Lab makes Mesh Repeater mode available for the FRITZ!Box 7590 AX. This allows the FRITZ!Box to be integrated into the home network with even more flexibility and used to improve Wi-Fi coverage. Over the next few months, the FRITZ! Lab will be expanded to include additional features and improvements in a range of areas and will be made available for additional FRITZ!Box models.

New Features in FRITZ!OS 8.10

Internet:

• NEW With the new fallback protection, the FRITZ!Box always stays online: If the internet connection fails, an alternative internet connection is established via the access device of your choice, e.g. via the mobile network with FRITZ!Box 6820 LTE or via USB mobile network dongles (more [1])
• NEW Simplified user guidance on the "Filter" pages (parental controls) (more [2])
• Improved Online time for a network device with restricted online time now can also be extended for 45 minutes directly in the parental controls
• Improved If the configured time server could not determine the system time, the system time is obtained from a public time server
• Improved Number of tickets to extend online time for devices blocked by parental controls was increased from 10 to 12
• Improved Online Monitor: Reworked display in the diagrams for the load on the internet connection
• Changed FRITZ! devices in the home network, e.g. FRITZ!Repeaters, are no longer offered in parental controls and prioritization; they always have unrestricted internet access with normal priority
• Changed Private IPv4 addresses (RFC 1918) are no longer posted via MyFRITZ!Net (DNS) if a publicly accessibly IPv6 address is available

Wi-Fi:

• NEW Use Mesh Repeater mode: FRITZ!Box 7590 AX, e.g. after purchasing a new FRITZ!Box (FRITZ!Box 7590 AX) (more [4])
• Changed Incongruous information text for configuration of the Wi-Fi guest access on the Mesh Repeater removed

Mesh:

• NEW Automatic detection of device type (e.g. smartphone, computer, or printer) for devices displayed in the Mesh Overview

Telephony:

• Improved Increased stability of telephone calls

DECT/FRITZ!Fon:

• Improved Podcasts can now be continued after interruption

Smart Home:

• NEW Routines can also be triggered by a phone call, by reaching a target temperature, or by activating boost or antifreeze functions, as well as by important events on the FRITZ!Box (more [5])
• NEW With FRITZ!Smart Control 440, the following functions can be controlled: the boost and frost protection functions for radiator controllers, the color and color temperature for lamps, the activation and deactivation of routines, and the display of the QR code for Wi-Fi

Storage (NAS):

• New Upload sharing: Via fritz.nas a folder can be shared for users with a sharing link to upload and download contents, e.g. to collect photos after a family celebration (more [3])
• Improved Better interoperability with FTP applications (e.g. Filezilla) through support for MFMT command
• Improved Simplified generation of sharing links

System:

• Improved "Forgot Password" function of the push service can now be configured with a freely chosen recipient
• Improved File name for saved settings now includes name of individual FRITZ!Box
• Improved Reworked pages of the update functions under "System > Update"
• Improved With "Diagnostics > Function" the services for the Network Time Protocol are checked and relevant information displayed about any errors found

[1] Substitute connection: Greater fallback protection for the internet connection

With the new failover protection, FRITZ!Box users can stay online at all times. If the fiber optic, DSL or cable connection is unstable or drops, any FRITZ!Box connected via WAN/LAN establishes a fallback connection via the mobile network. This feature is ideal for anyone who depends upon a reliable internet connection, be it in the home office or a retail store.

[2] Optimized parental controls

A number of practical optimizations have been included in the first version of FRITZ! Lab. The parental controls now clearly display access profiles and the corresponding devices on one page. Tickets for online time are easier to find on a separate tab and the number of tickets was increased from 10 to 12. This makes managing family internet usage even simpler and more intuitive. Detail improvements were also made to the Online Monitor area. The line graphs have been color-optimized for an even clearer display, and the tooltip that is now is easier to read provides users with more information about the Online Meter.

[3] New upload sharing - Sharing files easier than ever

With the new upload sharing via FRITZ!NAS, sharing files has never been easier: Users can make a folder available via sharing link, allowing others to directly upload and download content – perfect for collecting shared photos or documents. Thanks to the new function, it is no longer necessary to create a FRITZ!Box user with special write permission – instead, all that is needed to allow friends and family to securely upload files is a single link.

[4] 7590 AX now also usable as a Mesh Repeater via Wi-Fi

You can configure your FRITZ!Box for use as a Mesh Repeater and use Wi-Fi or a network cable to integrate it into the Mesh of your FRITZ!Box with internet access (Mesh Master) to increase the range of your home network easily and efficiently.

As a Mesh Repeater, the FRITZ!Box automatically adopts all of the necessary settings from the Mesh Master (for example Wi-Fi access information, guest access, schedule) and creates an additional Wi-Fi network that enables your devices to connect to the home network. In addition, the telephone numbers entered in the Mesh Master can be activated for the Mesh Repeater and used by telephone devices configured in it.

A maximum of Wi-Fi 5 (5 GHz) and Wi-Fi 4 (2.4 GHz) can be used for the connection to the Mesh Master.

Further information can be found at: https://fritz.com/service/mesh/faqs/fritzbox-als-mesh-repeater-einrichten/

[5] More possibilities in the smart home

The update also brings additional control functions for the FRITZ!DECT 440 smart switch. Now all the functions that could be configured directly on the radiator control FRITZ!Smart Thermo 302 can also be controlled with the smart switch. In addition, it now offers more comprehensive options for lighting control. Besides switching on and off and dimming, it can now be used to change the color and color temperature. In addition, routines can now be activated and deactivated directly using the FRITZ!Smart Control 440. Routines can also be triggered by a call, reaching a target temperature, activating the boost or antifreeze function, as well as by important events on the FRITZ!Box. To make managing Wi-Fi even simpler, the FRITZ!Smart Control 440 can be used to switch off the main Wi-Fi network in addition to guest Wi-Fi.

Further Improvements in FRITZ!OS 8.10

Internet:

• Changed When VPN connections are active for which all network traffic is routed via the VPN connection ("full tunnel"), the guest network is excluded from this and routed over the normal internet connection

Wi-Fi:

• Improved Increased stability in Mesh Repeater mode

System:

• Improved Functional diagnostics now indicates when access for apps is disabled in the home network sharing settings
• Improved The "Diagnostics > Function" page now displays information on problems with time synchronization via NTP
• Improved The probability of being logged out prematurely from certain pages of the user interface was reduced
• Improved Push service emails now clearly differentiate between function and security diagnostics through specific subject lines, adapted email texts, and file names

History of New Functions and Improvements in FRITZ!OS 8.10

Further Improvements of FRITZ!OS 8.10-120699

Internet:

• Fixed According to factory settings, the internet could not be reached after the initial configuration in spite of an established connection

Wi-Fi:

• Fixed When Wi-Fi was disabled, the Box was rendered as an IP client in the user interface

Telephony:

• Fixed Downloading faxes via the Call List on the user interface caused a logout from the user interface
• Fixed Messages on the answering machine of the FRITZ!Box could not be listened to via the user interface

System:

• Fixed Message about disabled update search was displayed although the automatic update search was enabled

Further Improvements of FRITZ!OS 8.10-120421/120424

Smart Home:

• Fixed The FRITZ!Box's communication with HAN FUN devices (FRITZ!DECT 500, BoxCTRL roller shutter drives from Becker, RolloTron DECT roller shutter belt winders from Rademacher, LED lights for the smart home, adapter plugs, wall switches, door/window contacts, and motion sensors from Deutsch Telekom) was interrupted.

Further Improvements of FRITZ!OS 8.10-120360/120361

Internet:

• Fixed The data capacity could not be saved on the "Online Monitor > Online Meter > Edit Rate" page
• Fixed When a FRITZ! product was connected to an external modem or a router (IP client mode), internal FRITZ!Box services like online storage, WebDAV, and weather service could not be reached
• Fixed The rate information in the Online Meter showed an incorrect end of the billing period
• Fixed Under certain circumstances, a FRITZ! product operated exclusively via IPv6 could not obtain the system time via the Network Time Protocol

Wi-Fi:

• Fixed The "Loading of the Current Wi-Fi Channel" diagram for the 5-GHz band was not displayed under certain conditions ("Please wait" permanently)
• Fixed Under certain circumstances UPnP clients that were connected with a FRITZ!Box in repeater mode could not establish a connection to UPnP servers

Telephony:

• Fixed No voice transmission during encrypted telephony

Home Network:

• Fixed Devices that were not connected were incorrectly displayed with the property "Guest Hotspot (non-encrypted)"
• Fixed Display of the Details page of a network device remained white when language set to Italian

System:

• Fixed In special scenarios multiple restarts occurred
• Fixed Message on the start screen about push service not working was incorrect
• Fixed The new functions of FRITZ!OS were no longer shown on the "Update" page

Further Improvements of FRITZ!OS 8.10-119980/119982

Internet:

• Fixed Enabling the UPnP filter had no effects for IPv6
• Fixed For FRITZ! devices operated exclusively via IPv6, under some circumstance there was no search for new FRITZ!OS versions (updates)
• Fixed For providers without support for IPv6, the Online Meter did not count consumption values as long as IPv6 was enabled in the account information of the FRITZ!Box
• Fixed Parental controls: Redeeming tickets to extend online time failed in certain scenarios
• Fixed Potential incorrect display in the Online Meter of the use of data capacity during the billing period
• Fixed Potential internet disruptions when using a large filter list for blocked websites

Telephony:

• Fixed In Austria (country code 43), dialing the number lanes 12, 13, and 14 was only possible with en-bloc dialing

Home Network:

• Fixed In special scenarios it was possible for the IP address 192.168.178.1 to be displayed for a repeater in the home network instead of its own address

System:

• Fixed Despite correct rate settings, the "Info" LED did not flash when online volume exhausted
• Fixed Incorrect configuration could lead to restart after update in certain rare cases

• Fixed Push service sent the Forgot Password link of devices configured as IP clients with the incorrect IP address

  Additional Feedback on FRITZ!OS

In addition to direct feedback in our lab area en.avm.de/fritz-lab, there are three additional feedback functions in the user interface which provide information. We have automated the processing of feedback supplied by these functions.

1) DSL feedback via "Internet / DSL Information / Feedback"

2) Wi-Fi feedback via "Wi-Fi / Wi-Fi Network": Feedback icon after the clients

3) VoIP feedback via "Telephony / Telephone Numbers / Voice Transmission", "Other" column: Feedback icon after each call

Information on the Lab update:

This FRITZ! Lab firmware is a beta version. We've tested it in standard environments before release, but it may still result in bugs. AVM is not liable for any damages that may arise from the use of the Lab version.

Information on working with Lab versions

We appreciate any feedback from our users, which can be submitted at: en.avm.de/fritz-lab. This page also lists all of the current FRITZ! Lab versions with corresponding feedback areas.

Before you start testing the Lab version

1) You haven't installed the latest firmware for your FRITZ!Box yet? You first need to update the firmware to the latest release.

2) Save your current settings under "System / Backup". The saved settings will be needed if you want to switch back from the Lab firmware back to the release firmware.

Testing the Lab version

Once the latest FRITZ!OS version has been installed on your FRITZ!Box and you've saved your current settings, you can begin testing.

1) Unzip the "fritzbox-yyyy-LabBETA-xxxxx.zip" file.

2) Use the FRITZ!Box user interface to install the update:

• Select "View: Advanced" in the footer.
• Click "Update" in the "System" menu.
• Switch to the "FRITZ!OS File" tab.
• Follow the instructions displayed on the screen.
• Enter the path to the Lab firmware and the name of the Lab file (FRITZ.Box_xxxx-0x.xx-xxxxx-Labor.image) in the input field. 3) The Lab version is installed on the FRITZ!Box. The FRITZ!Box will then restart.

Restoring your device to how it was before testing

You can switch back to the official FRITZ!OS at any time under "System > Update > FRITZ!OS Version" or reset the FRITZ!Box back

to the official FRITZ!OS using the enclosed Windows program "recover.exe" (included in the Lab package).

© AVM GmbH 2004—2025. All rights reserved.

This AVM firmware package contains files that are distributed under various licenses, in particular under an AVM proprietary license

or an open-source license (GNU General Public License, GNU Lesser General Public License or FreeBSD License). For details on the various

licenses, see the "license.txt" file (https://download.avm.de/fritzbox/license.txt).

The source code of the files distributed as open source can be requested in writing to fritzbox_info@avm.de.

AVM grants the non-exclusive right to use this AVM firmware package, which is supplied exclusively in object code format.

The licensee may create only one copy of the software, which may be used exclusively for backup purposes.

AVM reserves all intellectual property rights except as expressly granted herein. In particular, without previous approval in writing

and except as permitted by law, this AVM firmware packet may not be reproduced, distributed or in any other manner made publicly accessible, nor may it be edited, disassembled, reverse engineered, translated, decompiled or otherwise "opened" in whole or in part, and subsequently reproduced, distributed or made publicly accessible

TJA 13052025

The latest lab file on our download server, "fritzbox-XXXX-Labor-xxxx.zip", contains

• the lab version for your FRITZ!Box
• this "infolab-en.txt" file with important information on this lab version
• information, feedback options, and the file at en.avm.de/fritz-lab

Neue Features:

• Substitute connection: Greater fallback protection for the internet connection
• Optimized parental controls
• New upload sharing - Sharing files easier than ever
• FRITZ!Box 7590 AX now also usable as a Mesh Repeater via Wi-Fi
• More possibilities in the smart home

New Features and Improvements in FRITZ!OS 8.10

This FRITZ! Lab contains new functions fresh from the AVM development team and gives a preview of upcoming FRITZ!OS features in the next major update. It also contains the latest developments in the areas of security and energy efficiency.

The FRITZ! Lab launched adds additional control functions to the home network, increases fallback protection for the internet connection, and optimizes the smart home. For the first time, this FRITZ! Lab makes Mesh Repeater mode available for the FRITZ!Box 7590 AX. This allows the FRITZ!Box to be integrated into the home network with even more flexibility and used to improve Wi-Fi coverage. Over the next few months, the FRITZ! Lab will be expanded to include additional features and improvements in a range of areas and will be made available for additional FRITZ!Box models.

New Features in FRITZ!OS 8.10

Internet:

• NEW With the new fallback protection, the FRITZ!Box always stays online: If the internet connection fails, an alternative internet connection is established via the access device of your choice, e.g. via the mobile network with FRITZ!Box 6820 LTE or via USB mobile network dongles (more [1])
• NEW Simplified user guidance on the "Filter" pages (parental controls) (more [2])
• Improved Online time for a network device with restricted online time now can also be extended for 45 minutes directly in the parental controls
• Improved If the configured time server could not determine the system time, the system time is obtained from a public time server
• Improved Number of tickets to extend online time for devices blocked by parental controls was increased from 10 to 12
• Improved Online Monitor: Reworked display in the diagrams for the load on the internet connection
• Changed FRITZ! devices in the home network, e.g. FRITZ!Repeaters, are no longer offered in parental controls and prioritization; they always have unrestricted internet access with normal priority
• Changed Private IPv4 addresses (RFC 1918) are no longer posted via MyFRITZ!Net (DNS) if a publicly accessibly IPv6 address is available

Wi-Fi:

• NEW Use Mesh Repeater mode: FRITZ!Box 7590 AX, e.g. after purchasing a new FRITZ!Box (FRITZ!Box 7590 AX) (more [4])
• Changed Incongruous information text for configuration of the Wi-Fi guest access on the Mesh Repeater removed

Mesh:

• NEW Automatic detection of device type (e.g. smartphone, computer, or printer) for devices displayed in the Mesh Overview

Telephony:

• Improved Increased stability of telephone calls

DECT/FRITZ!Fon:

• Improved Podcasts can now be continued after interruption

Smart Home:

• NEW Routines can also be triggered by a phone call, by reaching a target temperature, or by activating boost or antifreeze functions, as well as by important events on the FRITZ!Box (more [5])
• NEW With FRITZ!Smart Control 440, the following functions can be controlled: the boost and frost protection functions for radiator controllers, the color and color temperature for lamps, the activation and deactivation of routines, and the display of the QR code for Wi-Fi

Storage (NAS):

• New Upload sharing: Via fritz.nas a folder can be shared for users with a sharing link to upload and download contents, e.g. to collect photos after a family celebration (more [3])
• Improved Better interoperability with FTP applications (e.g. Filezilla) through support for MFMT command
• Improved Simplified generation of sharing links

System:

• Improved "Forgot Password" function of the push service can now be configured with a freely chosen recipient
• Improved File name for saved settings now includes name of individual FRITZ!Box
• Improved Reworked pages of the update functions under "System > Update"
• Improved With "Diagnostics > Function" the services for the Network Time Protocol are checked and relevant information displayed about any errors found

[1] Substitute connection: Greater fallback protection for the internet connection

With the new failover protection, FRITZ!Box users can stay online at all times. If the fiber optic, DSL or cable connection is unstable or drops, any FRITZ!Box connected via WAN/LAN establishes a fallback connection via the mobile network. This feature is ideal for anyone who depends upon a reliable internet connection, be it in the home office or a retail store.

[2] Optimized parental controls

A number of practical optimizations have been included in the first version of FRITZ! Lab. The parental controls now clearly display access profiles and the corresponding devices on one page. Tickets for online time are easier to find on a separate tab and the number of tickets was increased from 10 to 12. This makes managing family internet usage even simpler and more intuitive. Detail improvements were also made to the Online Monitor area. The line graphs have been color-optimized for an even clearer display, and the tooltip that is now is easier to read provides users with more information about the Online Meter.

[3] New upload sharing - Sharing files easier than ever

With the new upload sharing via FRITZ!NAS, sharing files has never been easier: Users can make a folder available via sharing link, allowing others to directly upload and download content perfect for collecting shared photos or documents. Thanks to the new function, it is no longer necessary to create a FRITZ!Box user with special write permission instead, all that is needed to allow friends and family to securely upload files is a single link.

[4] 7590 AX now also usable as a Mesh Repeater via Wi-Fi

You can configure your FRITZ!Box for use as a Mesh Repeater and use Wi-Fi or a network cable to integrate it into the Mesh of your FRITZ!Box with internet access (Mesh Master) to increase the range of your home network easily and efficiently.

As a Mesh Repeater, the FRITZ!Box automatically adopts all of the necessary settings from the Mesh Master (for example Wi-Fi access information, guest access, schedule) and creates an additional Wi-Fi network that enables your devices to connect to the home network. In addition, the telephone numbers entered in the Mesh Master can be activated for the Mesh Repeater and used by telephone devices configured in it.

A maximum of Wi-Fi 5 (5 GHz) and Wi-Fi 4 (2.4 GHz) can be used for the connection to the Mesh Master.

Further information can be found at: https://fritz.com/service/mesh/faqs/fritzbox-als-mesh-repeater-einrichten/

[5] More possibilities in the smart home

The update also brings additional control functions for the FRITZ!DECT 440 smart switch. Now all the functions that could be configured directly on the radiator control FRITZ!Smart Thermo 302 can also be controlled with the smart switch. In addition, it now offers more comprehensive options for lighting control. Besides switching on and off and dimming, it can now be used to change the color and color temperature. In addition, routines can now be activated and deactivated directly using the FRITZ!Smart Control 440. Routines can also be triggered by a call, reaching a target temperature, activating the boost or antifreeze function, as well as by important events on the FRITZ!Box. To make managing Wi-Fi even simpler, the FRITZ!Smart Control 440 can be used to switch off the main Wi-Fi network in addition to guest Wi-Fi.

Further Improvements in FRITZ!OS 8.10

Internet:

• Changed When VPN connections are active for which all network traffic is routed via the VPN connection ("full tunnel"), the guest network is excluded from this and routed over the normal internet connection

System:

• Improved Functional diagnostics now indicates when access for apps is disabled in the home network sharing settings
• Improved The "Diagnostics > Function" page now displays information on problems with time synchronization via NTP
• Improved The probability of being logged out prematurely from certain pages of the user interface was reduced
• Improved Push service emails now clearly differentiate between function and security diagnostics through specific subject lines, adapted email texts, and file names

History of New Functions and Improvements in FRITZ!OS 8.10

Further Improvements of FRITZ!OS 8.10-120696

Internet:

• Fixed According to factory settings, the internet could not be reached after the initial configuration in spite of an established connection

Telephony:

• Fixed Downloading faxes via the Call List on the user interface caused a logout from the user interface
• Fixed Messages on the answering machine of the FRITZ!Box could not be listened to via the user interface

System:

• Fixed Message about disabled update search was displayed although the automatic update search was enabled

Further Improvements of FRITZ!OS 8.10-120421/120424

Smart Home:

• Fixed The FRITZ!Box's communication with HAN FUN devices (FRITZ!DECT 500, BoxCTRL roller shutter drives from Becker, RolloTron DECT roller shutter belt winders from Rademacher, LED lights for the smart home, adapter plugs, wall switches, door/window contacts, and motion sensors from Deutsch Telekom) was interrupted.

Further Improvements of FRITZ!OS 8.10-120360/120361

Internet:

• Fixed The data capacity could not be saved on the "Online Monitor > Online Meter > Edit Rate" page
• Fixed When a FRITZ! product was connected to an external modem or a router (IP client mode), internal FRITZ!Box services like online storage, WebDAV, and weather service could not be reached
• Fixed The rate information in the Online Meter showed an incorrect end of the billing period
• Fixed Under certain circumstances, a FRITZ! product operated exclusively via IPv6 could not obtain the system time via the Network Time Protocol

Wi-Fi:

• Fixed The "Loading of the Current Wi-Fi Channel" diagram for the 5-GHz band was not displayed under certain conditions ("Please wait" permanently)
• Fixed Under certain circumstances UPnP clients that were connected with a FRITZ!Box in repeater mode could not establish a connection to UPnP servers

Telephony:

• Fixed No voice transmission during encrypted telephony

Home Network:

• Fixed Devices that were not connected were incorrectly displayed with the property "Guest Hotspot (non-encrypted)"
• Fixed Display of the Details page of a network device remained white when language set to Italian

System:

• Fixed In special scenarios multiple restarts occurred
• Fixed Message on the start screen about push service not working was incorrect
• Fixed The new functions of FRITZ!OS were no longer shown on the "Update" page

Further Improvements of FRITZ!OS 8.10-119980/119982

Internet:

• Fixed Enabling the UPnP filter had no effects for IPv6
• Fixed For FRITZ! devices operated exclusively via IPv6, under some circumstance there was no search for new FRITZ!OS versions (updates)
• Fixed For providers without support for IPv6, the Online Meter did not count consumption values as long as IPv6 was enabled in the account information of the FRITZ!Box
• Fixed Parental controls: Redeeming tickets to extend online time failed in certain scenarios
• Fixed Potential incorrect display in the Online Meter of the use of data capacity during the billing period
• Fixed Potential internet disruptions when using a large filter list for blocked websites

Telephony:

• Fixed In Austria (country code 43), dialing the number lanes 12, 13, and 14 was only possible with en-bloc dialing

Home Network:

• Fixed In special scenarios it was possible for the IP address 192.168.178.1 to be displayed for a repeater in the home network instead of its own address

System:

• Fixed Despite correct rate settings, the "Info" LED did not flash when online volume exhausted
• Fixed Incorrect configuration could lead to restart after update in certain rare cases

• Fixed Push service sent the Forgot Password link of devices configured as IP clients with the incorrect IP address

  Additional Feedback on FRITZ!OS

In addition to direct feedback in our lab area en.avm.de/fritz-lab, there are three additional feedback functions in the user interface which provide information. We have automated the processing of feedback supplied by these functions.

1) DSL feedback via "Internet / DSL Information / Feedback"

2) Wi-Fi feedback via "Wi-Fi / Wi-Fi Network": Feedback icon after the clients

3) VoIP feedback via "Telephony / Telephone Numbers / Voice Transmission", "Other" column: Feedback icon after each call

Information on the Lab update:

This FRITZ! Lab firmware is a beta version. We've tested it in standard environments before release, but it may still result in bugs. AVM is not liable for any damages that may arise from the use of the Lab version.

Information on working with Lab versions

We appreciate any feedback from our users, which can be submitted at: en.avm.de/fritz-lab. This page also lists all of the current FRITZ! Lab versions with corresponding feedback areas.

Before you start testing the Lab version

1) You haven't installed the latest firmware for your FRITZ!Box yet? You first need to update the firmware to the latest release.

2) Save your current settings under "System / Backup". The saved settings will be needed if you want to switch back from the Lab firmware back to the release firmware.

Testing the Lab version

Once the latest FRITZ!OS version has been installed on your FRITZ!Box and you've saved your current settings, you can begin testing.

1) Unzip the "fritzbox-yyyy-LabBETA-xxxxx.zip" file.

2) Use the FRITZ!Box user interface to install the update:

• Select "View: Advanced" in the footer.
• Click "Update" in the "System" menu.
• Switch to the "FRITZ!OS File" tab.
• Follow the instructions displayed on the screen.
• Enter the path to the Lab firmware and the name of the Lab file (FRITZ.Box_xxxx-0x.xx-xxxxx-Labor.image) in the input field. 3) The Lab version is installed on the FRITZ!Box. The FRITZ!Box will then restart.

Restoring your device to how it was before testing

You can switch back to the official FRITZ!OS at any time under "System > Update > FRITZ!OS Version" or reset the FRITZ!Box back

to the official FRITZ!OS using the enclosed Windows program "recover.exe" (included in the Lab package).

AVM GmbH 2004 2025. All rights reserved.

This AVM firmware package contains files that are distributed under various licenses, in particular under an AVM proprietary license

or an open-source license (GNU General Public License, GNU Lesser General Public License or FreeBSD License). For details on the various

licenses, see the "license.txt" file (https://download.avm.de/fritzbox/license.txt).

The source code of the files distributed as open source can be requested in writing to fritzbox_info@avm.de.

AVM grants the non-exclusive right to use this AVM firmware package, which is supplied exclusively in object code format.

The licensee may create only one copy of the software, which may be used exclusively for backup purposes.

AVM reserves all intellectual property rights except as expressly granted herein. In particular, without previous approval in writing

and except as permitted by law, this AVM firmware packet may not be reproduced, distributed or in any other manner made publicly accessible, nor may it be edited, disassembled, reverse engineered, translated, decompiled or otherwise "opened" in whole or in part, and subsequently reproduced, distributed or made publicly accessible

TJA 13052025

The latest lab file on our download server, "fritzbox-6690-Labor-xxxx.zip", contains

• the lab version for your FRITZ!Box
• this "infolab-en.txt" file with important information on this lab version
• information, feedback options, and the file at en.avm.de/fritz-lab

Neue Features:

• Substitute connection: Greater fallback protection for the internet connection
• Optimized parental controls
• New upload sharing - Sharing files easier than ever
• More possibilities in the smart home

New Features and Improvements in FRITZ!OS 8.10

This FRITZ! Lab contains new functions fresh from the AVM development team and gives a preview of upcoming FRITZ!OS features in the next major update. It also contains the latest developments in the areas of security and energy efficiency.

The FRITZ! Lab launched adds additional control functions to the home network, increases fallback protection for the internet connection, and optimizes the smart home. For the first time, this FRITZ! Lab makes Mesh Repeater mode available for the FRITZ!Box 7590 AX. This allows the FRITZ!Box to be integrated into the home network with even more flexibility and used to improve Wi-Fi coverage. Over the next few months, the FRITZ! Lab will be expanded to include additional features and improvements in a range of areas and will be made available for additional FRITZ!Box models.

New functions of FRITZ!OS 8.10

Internet:

• NEW With the new fallback protection, the FRITZ!Box always stays online: If the internet connection fails, an alternative internet connection is established via the access device of your choice, e.g. via the mobile network with FRITZ!Box 6820 LTE or via USB mobile network dongles (more [1])
• NEW Simplified user guidance on the "Filter" pages (parental controls) (more [2])

Mesh:

• NEW Automatic detection of device type (e.g. smartphone, computer, or printer) for devices displayed in the Mesh Overview

Smart Home:

• NEW Routines can also be triggered by a phone call, by reaching a target temperature, or by activating boost or antifreeze functions, as well as by important events on the FRITZ!Box (more [4])
• NEW With FRITZ!Smart Control 440, the following functions can be controlled: the boost and frost protection functions for radiator controllers, the color and color temperature for lamps, the activation and deactivation of routines, and the display of the QR code for Wi-Fi

Storage (NAS):

• New Upload sharing: Via fritz.nas a folder can be shared for users with a sharing link to upload and download contents, e.g. to collect photos after a family celebration (more [3])

Further Improvements of FRITZ!OS 8.10

Storage/NAS:

• Improved Simplified generation of sharing links

Internet:

• Improved For the internet provider 1&1 Telecom GmbH, the opportunity to switch to an internet connection via WAN is offered under "Internet > Account Information"
• Improved If the configured time server could not determine the system time, the system time is obtained from a public time server
• Improved Number of tickets to extend online time for devices blocked by parental controls was increased from 10 to 12
• Improved Online Monitor: Reworked display in the diagrams for the load on the internet connection
• Improved Online time for a network device with restricted online time now can also be extended for 45 minutes directly in the parental controls
• Changed FRITZ! devices in the home network, e.g. FRITZ!Repeaters, are no longer offered in parental controls and prioritization; they always have unrestricted internet access with normal priority
• Changed Private IPv4 addresses (RFC 1918) are no longer posted via MyFRITZ!Net (DNS) if a publicly accessibly IPv6 address is available
• Changed When VPN connections are active for which all network traffic is routed via the VPN connection ("full tunnel"), the guest network is excluded from this and routed over the normal internet connection
• Fixed During operation of the FRITZ!Box on an external modem or router, limitations of the internet connection occurred
• Fixed Enabling the UPnP filter had no effects for IPv6
• Fixed For FRITZ! devices operated exclusively via IPv6, under some circumstance there was no search for new FRITZ!OS versions (updates)
• Fixed For providers without support for IPv6, the Online Meter did not count consumption values as long as IPv6 was enabled in the account information of the FRITZ!Box
• Fixed Parental controls: Redeeming tickets to extend online time failed in certain scenarios
• Fixed Potential incorrect display in the Online Meter of the use of data capacity during the billing period
• Fixed Potential internet disruptions when using a large filter list for blocked websites
• Fixed The rate information in the Online Meter showed an incorrect end of the billing period
• Fixed Under certain circumstances, a FRITZ! product operated exclusively via IPv6 could not obtain the system time via the Network Time Protocol

Wi-Fi:

• Changed Incongruous information text for configuration of the Wi-Fi guest access on the Mesh Repeater removed

DECT/FRITZ!Fon:

• Improved Podcasts can now be continued after interruption

Home Network:

• Fixed In special scenarios it was possible for the IP address 192.168.178.1 to be displayed for a repeater in the home network instead of its own address

Storage (NAS):

• Improved Better interoperability with FTP applications (e.g. Filezilla) through support for MFMT command

System:

• Improved "Forgot Password" function of the push service can now be configured with a freely chosen recipient
• Improved File name for saved settings now includes name of individual FRITZ!Box
• Improved Functional diagnostics now indicates when access for apps is disabled in the home network sharing settings
• Improved Reworked pages of the update functions under "System > Update"
• Improved The "Diagnostics > Function" page now displays information on problems with time synchronization via NTP
• Improved With "Diagnostics > Function" the services for the Network Time Protocol are checked and relevant information displayed about any errors found
• Improved The probability of being logged out prematurely from certain pages of the user interface was reduced
• Improved Translations added
• Fixed Despite correct rate settings, the "Info" LED did not flash when online volume exhausted
• Fixed Incorrect configuration could lead to restart after update in certain rare cases
• Fixed Push service sent the Forgot Password link of devices configured as IP clients with the incorrect IP address

[1] Substitute connection: Greater fallback protection for the internet connection

With the new failover protection, FRITZ!Box users can stay online at all times. If the fiber optic, DSL or cable connection is unstable or drops, any FRITZ!Box connected via WAN/LAN establishes a fallback connection via the mobile network. This feature is ideal for anyone who depends upon a reliable internet connection, be it in the home office or a retail store.

[2] Optimized parental controls

A number of practical optimizations have been included in the first version of FRITZ! Lab. The parental controls now clearly display access profiles and the corresponding devices on one page. Tickets for online time are easier to find on a separate tab and the number of tickets was increased from 10 to 12. This makes managing family internet usage even simpler and more intuitive. Detail improvements were also made to the Online Monitor area. The line graphs have been color-optimized for an even clearer display, and the tooltip that is now is easier to read provides users with more information about the Online Meter.

[3] New upload sharing - Sharing files easier than ever

With the new upload sharing via FRITZ!NAS, sharing files has never been easier: Users can make a folder available via sharing link, allowing others to directly upload and download content – perfect for collecting shared photos or documents. Thanks to the new function, it is no longer necessary to create a FRITZ!Box user with special write permission – instead, all that is needed to allow friends and family to securely upload files is a single link.

[4] More possibilities in the smart home

The update also brings additional control functions for the FRITZ!DECT 440 smart switch. Now all the functions that could be configured directly on the radiator control FRITZ!Smart Thermo 302 can also be controlled with the smart switch.

History of New Functions and Improvements in FRITZ!OS 8.10

Improvements of FRITZ!OS within FRITZ!Labor 8.10-120808

Internet:

• Fixed According to factory settings, the internet could not be reached after the initial configuration in spite of an established connection
• Fixed After enabling DNS over TLS (DoT), manually configured DNS servers without DoT were not visible in the Connection Details
• Fixed The PCP port range of PCP connections was not displayed in the Online Monitor
• Fixed The data capacity could not be saved on the "Online Monitor > Online Meter > Edit Rate" page
• Fixed Under certain circumstances, VPN connections were not displayed in the Mesh Overview
• Fixed When a FRITZ! product was connected to an external modem or a router (IP client mode), internal FRITZ!Box services like online storage, WebDAV, and weather service could not be reached

Wi-Fi:

• Fixed Link from the main page of the user interface to Wi-Fi guest access was incorrect
• Fixed The "Loading of the Current Wi-Fi Channel" diagram for the 5-GHz band was not displayed under certain conditions ("Please wait" permanently)
• Fixed Under certain circumstances UPnP clients that were connected with a FRITZ!Box in repeater mode could not establish a connection to UPnP servers

Telephony:

• Fixed Downloading faxes via the Call List on the user interface caused a logout from the user interface
• Fixed Messages on the answering machine of the FRITZ!Box could not be listened to via the user interface
• Fixed No voice transmission during encrypted telephony

Home Network:

• Fixed Devices that were not connected were incorrectly displayed with the property "Guest Hotspot (non-encrypted)"
• Fixed In the overview of network connections, very long names of network devices were not displayed correctly
• Fixed Individually assigned names for Mesh Repeaters no longer displayed after update
• Fixed On the detail pages, online time was shown as exhausted although the device was not blocked

Smart Home:

• Fixed The FRITZ!Box's communication with HAN FUN devices (FRITZ!DECT 500, BoxCTRL roller shutter drives from Becker, RolloTron DECT roller shutter belt winders from Rademacher, LED lights for the smart home, adapter plugs, wall switches, door/window contacts, and motion sensors from Deutsch Telekom) was interrupted.

System:

• Fixed Disabled "FRITZ!Box Info" push service could not be reenabled in the detailed view
• Fixed Message about disabled update search was displayed although the automatic update search was enabled
• Fixed Message on the start screen about push service not working was incorrect
• Fixed The new functions of FRITZ!OS were no longer shown on the "Update" page
• Fixed The push service "Wi-Fi guest access" could be edited on Mesh Repeaters although the Mesh Master settings are to be adopted for this push service
• Improved The probability of being logged out prematurely from certain pages of the user interface was reduced
• Improved Translations added

Additional Feedback on FRITZ!OS

In addition to direct feedback in our lab area en.avm.de/fritz-lab, there are three additional feedback functions in the user interface which provide information. We have automated the processing of feedback supplied by these functions.

1) Wi-Fi feedback via "Wi-Fi / Wi-Fi Network": Feedback icon after the clients

2) VoIP feedback via "Telephony / Telephone Numbers / Voice Transmission", "Other" column: Feedback icon after each call

Information on the Lab update:

This FRITZ! Lab firmware is a beta version. We've tested it in standard environments before release, but it may still result in bugs. AVM is not liable for any damages that may arise from the use of the Lab version.

Information on working with Lab versions

We appreciate any feedback from our users, which can be submitted at: en.avm.de/fritz-lab. This page also lists all of the current FRITZ! Lab versions with corresponding feedback areas.

Before you start testing the Lab version

1) You haven't installed the latest firmware for your FRITZ!Box yet? You first need to update the firmware to the latest release.

2) Save your current settings under "System / Backup". The saved settings will be needed if you want to switch back from the Lab firmware back to the release firmware.

Testing the Lab version

Once the latest FRITZ!OS version has been installed on your FRITZ!Box and you've saved your current settings, you can begin testing.

1) Unzip the "fritzbox-yyyy-LabBETA-xxxxx.zip" file.

2) Use the FRITZ!Box user interface to install the update:

• Select "View: Advanced" in the footer.
• Click "Update" in the "System" menu.
• Switch to the "FRITZ!OS File" tab.
• Follow the instructions displayed on the screen.
• Enter the path to the Lab firmware and the name of the Lab file (FRITZ.Box_xxxx-0x.xx-xxxxx-Labor.image) in the input field. 3) The Lab version is installed on the FRITZ!Box. The FRITZ!Box will then restart.

Restoring your device to how it was before testing:

You can switch back to the official FRITZ!OS at any time under "System > Update > FRITZ!OS Version".

© AVM GmbH 2004—2025. All rights reserved.

This AVM firmware package contains files that are distributed under various licenses, in particular under an AVM proprietary license

or an open-source license (GNU General Public License, GNU Lesser General Public License or FreeBSD License). For details on the various

licenses, see the "license.txt" file (https://download.avm.de/fritzbox/license.txt).

The source code of the files distributed as open source can be requested in writing to fritzbox_info@avm.de.

AVM grants the non-exclusive right to use this AVM firmware package, which is supplied exclusively in object code format.

The licensee may create only one copy of the software, which may be used exclusively for backup purposes.

AVM reserves all intellectual property rights except as expressly granted herein. In particular, without previous approval in writing

and except as permitted by law, this AVM firmware packet may not be reproduced, distributed or in any other manner made publicly accessible, nor may it be edited, disassembled, reverse engineered, translated, decompiled or otherwise "opened" in whole or in part, and subsequently reproduced, distributed or made publicly accessible

JFA20250515

The latest lab file on our download server, "fritzbox-6660-Labor-xxxx.zip", contains

• the lab version for your FRITZ!Box
• this "infolab-en.txt" file with important information on this lab version
• information, feedback options, and the file at en.avm.de/fritz-lab

Neue Features:

• Substitute connection: Greater fallback protection for the internet connection
• Optimized parental controls
• New upload sharing - Sharing files easier than ever
• More possibilities in the smart home

New Features and Improvements in FRITZ!OS 8.10

This FRITZ! Lab contains new functions fresh from the AVM development team and gives a preview of upcoming FRITZ!OS features in the next major update. It also contains the latest developments in the areas of security and energy efficiency.

The FRITZ! Lab launched adds additional control functions to the home network, increases fallback protection for the internet connection, and optimizes the smart home. For the first time, this FRITZ! Lab makes Mesh Repeater mode available for the FRITZ!Box 7590 AX. This allows the FRITZ!Box to be integrated into the home network with even more flexibility and used to improve Wi-Fi coverage. Over the next few months, the FRITZ! Lab will be expanded to include additional features and improvements in a range of areas and will be made available for additional FRITZ!Box models.

New functions of FRITZ!OS 8.10

Internet:

• NEW With the new fallback protection, the FRITZ!Box always stays online: If the internet connection fails, an alternative internet connection is established via the access device of your choice, e.g. via the mobile network with FRITZ!Box 6820 LTE or via USB mobile network dongles (more [1])
• NEW Simplified user guidance on the "Filter" pages (parental controls) (more [2])

Mesh:

• NEW Automatic detection of device type (e.g. smartphone, computer, or printer) for devices displayed in the Mesh Overview

Smart Home:

• NEW Routines can also be triggered by a phone call, by reaching a target temperature, or by activating boost or antifreeze functions, as well as by important events on the FRITZ!Box (more [4])
• NEW With FRITZ!Smart Control 440, the following functions can be controlled: the boost and frost protection functions for radiator controllers, the color and color temperature for lamps, the activation and deactivation of routines, and the display of the QR code for Wi-Fi

Storage (NAS):

• New Upload sharing: Via fritz.nas a folder can be shared for users with a sharing link to upload and download contents, e.g. to collect photos after a family celebration (more [3])

Further Improvements of FRITZ!OS 8.10

Internet:

• Improved For the internet provider 1&1 Telecom GmbH, the opportunity to switch to an internet connection via WAN is offered under "Internet > Account Information"
• Improved If the configured time server could not determine the system time, the system time is obtained from a public time server
• Improved Number of tickets to extend online time for devices blocked by parental controls was increased from 10 to 12
• Improved Online Monitor: Reworked display in the diagrams for the load on the internet connection
• Improved Online time for a network device with restricted online time now can also be extended for 45 minutes directly in the parental controls
• Changed FRITZ! devices in the home network, e.g. FRITZ!Repeaters, are no longer offered in parental controls and prioritization; they always have unrestricted internet access with normal priority
• Changed Private IPv4 addresses (RFC 1918) are no longer posted via MyFRITZ!Net (DNS) if a publicly accessibly IPv6 address is available
• Changed When VPN connections are active for which all network traffic is routed via the VPN connection ("full tunnel"), the guest network is excluded from this and routed over the normal internet connection
• Fixed During operation of the FRITZ!Box on an external modem or router, limitations of the internet connection occurred
• Fixed Enabling the UPnP filter had no effects for IPv6
• Fixed For FRITZ! devices operated exclusively via IPv6, under some circumstance there was no search for new FRITZ!OS versions (updates)
• Fixed For providers without support for IPv6, the Online Meter did not count consumption values as long as IPv6 was enabled in the account information of the FRITZ!Box
• Fixed Parental controls: Redeeming tickets to extend online time failed in certain scenarios
• Fixed Potential incorrect display in the Online Meter of the use of data capacity during the billing period
• Fixed Potential internet disruptions when using a large filter list for blocked websites
• Fixed The rate information in the Online Meter showed an incorrect end of the billing period
• Fixed Under certain circumstances, a FRITZ! product operated exclusively via IPv6 could not obtain the system time via the Network Time Protocol

Wi-Fi:

• Changed Incongruous information text for configuration of the Wi-Fi guest access on the Mesh Repeater removed

DECT/FRITZ!Fon:

• Improved Podcasts can now be continued after interruption

Home Network:

• Fixed In special scenarios it was possible for the IP address 192.168.178.1 to be displayed for a repeater in the home network instead of its own address

Storage (NAS):

• Improved Better interoperability with FTP applications (e.g. Filezilla) through support for MFMT command
• Improved Simplified generation of sharing links

System:

• Improved "Forgot Password" function of the push service can now be configured with a freely chosen recipient
• Improved File name for saved settings now includes name of individual FRITZ!Box
• Improved Functional diagnostics now indicates when access for apps is disabled in the home network sharing settings
• Improved Reworked pages of the update functions under "System > Update"
• Improved The "Diagnostics > Function" page now displays information on problems with time synchronization via NTP
• Improved With "Diagnostics > Function" the services for the Network Time Protocol are checked and relevant information displayed about any errors found
• Improved The probability of being logged out prematurely from certain pages of the user interface was reduced
• Improved Translations added
• Fixed Despite correct rate settings, the "Info" LED did not flash when online volume exhausted
• Fixed Incorrect configuration could lead to restart after update in certain rare cases
• Fixed Push service sent the Forgot Password link of devices configured as IP clients with the incorrect IP address

[1] Substitute connection: Greater fallback protection for the internet connection

With the new failover protection, FRITZ!Box users can stay online at all times. If the fiber optic, DSL or cable connection is unstable or drops, any FRITZ!Box connected via WAN/LAN establishes a fallback connection via the mobile network. This feature is ideal for anyone who depends upon a reliable internet connection, be it in the home office or a retail store.

[2] Optimized parental controls

A number of practical optimizations have been included in the first version of FRITZ! Lab. The parental controls now clearly display access profiles and the corresponding devices on one page. Tickets for online time are easier to find on a separate tab and the number of tickets was increased from 10 to 12. This makes managing family internet usage even simpler and more intuitive. Detail improvements were also made to the Online Monitor area. The line graphs have been color-optimized for an even clearer display, and the tooltip that is now is easier to read provides users with more information about the Online Meter.

[3] New upload sharing - Sharing files easier than ever

With the new upload sharing via FRITZ!NAS, sharing files has never been easier: Users can make a folder available via sharing link, allowing others to directly upload and download content – perfect for collecting shared photos or documents. Thanks to the new function, it is no longer necessary to create a FRITZ!Box user with special write permission – instead, all that is needed to allow friends and family to securely upload files is a single link.

[4] More possibilities in the smart home

The update also brings additional control functions for the FRITZ!DECT 440 smart switch. Now all the functions that could be configured directly on the radiator control FRITZ!Smart Thermo 302 can also be controlled with the smart switch.

History of New Functions and Improvements in FRITZ!OS 8.10

Improvements of FRITZ!OS within FRITZ!Labor 8.10-120807

Internet:

• Fixed According to factory settings, the internet could not be reached after the initial configuration in spite of an established connection
• Fixed After enabling DNS over TLS (DoT), manually configured DNS servers without DoT were not visible in the Connection Details
• Fixed The PCP port range of PCP connections was not displayed in the Online Monitor
• Fixed The data capacity could not be saved on the "Online Monitor > Online Meter > Edit Rate" page
• Fixed Under certain circumstances, VPN connections were not displayed in the Mesh Overview
• Fixed When a FRITZ! product was connected to an external modem or a router (IP client mode), internal FRITZ!Box services like online storage, WebDAV, and weather service could not be reached

Wi-Fi:

• Fixed Crashes upon changes to the Wi-Fi settings
• Fixed Link from the main page of the user interface to Wi-Fi guest access was incorrect
• Fixed The "Loading of the Current Wi-Fi Channel" diagram for the 5-GHz band was not displayed under certain conditions ("Please wait" permanently)
• Fixed Under certain circumstances UPnP clients that were connected with a FRITZ!Box in repeater mode could not establish a connection to UPnP servers

Telephony:

• Fixed Downloading faxes via the Call List on the user interface caused a logout from the user interface
• Fixed Messages on the answering machine of the FRITZ!Box could not be listened to via the user interface
• Fixed No voice transmission during encrypted telephony

Home Network:

• Fixed Devices that were not connected were incorrectly displayed with the property "Guest Hotspot (non-encrypted)"
• Fixed In the overview of network connections, very long names of network devices were not displayed correctly
• Fixed Individually assigned names for Mesh Repeaters no longer displayed after update
• Fixed On the detail pages, online time was shown as exhausted although the device was not blocked

Smart Home:

• Fixed The FRITZ!Box's communication with HAN FUN devices (FRITZ!DECT 500, BoxCTRL roller shutter drives from Becker, RolloTron DECT roller shutter belt winders from Rademacher, LED lights for the smart home, adapter plugs, wall switches, door/window contacts, and motion sensors from Deutsch Telekom) was interrupted.

System:

• Fixed Disabled "FRITZ!Box Info" push service could not be reenabled in the detailed view
• Fixed Message about disabled update search was displayed although the automatic update search was enabled
• Fixed Message on the start screen about push service not working was incorrect
• Fixed The new functions of FRITZ!OS were no longer shown on the "Update" page
• Fixed The push service "Wi-Fi guest access" could be edited on Mesh Repeaters although the Mesh Master settings are to be adopted for this push service
• Improved The probability of being logged out prematurely from certain pages of the user interface was reduced
• Improved Translations added

Additional Feedback on FRITZ!OS

In addition to direct feedback in our lab area en.avm.de/fritz-lab, there are three additional feedback functions in the user interface which provide information. We have automated the processing of feedback supplied by these functions.

1) Wi-Fi feedback via "Wi-Fi / Wi-Fi Network": Feedback icon after the clients

2) VoIP feedback via "Telephony / Telephone Numbers / Voice Transmission", "Other" column: Feedback icon after each call

Information on the Lab update:

This FRITZ! Lab firmware is a beta version. We've tested it in standard environments before release, but it may still result in bugs. AVM is not liable for any damages that may arise from the use of the Lab version.

Information on working with Lab versions

We appreciate any feedback from our users, which can be submitted at: en.avm.de/fritz-lab. This page also lists all of the current FRITZ! Lab versions with corresponding feedback areas.

Before you start testing the Lab version

1) You haven't installed the latest firmware for your FRITZ!Box yet? You first need to update the firmware to the latest release.

2) Save your current settings under "System / Backup". The saved settings will be needed if you want to switch back from the Lab firmware back to the release firmware.

Testing the Lab version

Once the latest FRITZ!OS version has been installed on your FRITZ!Box and you've saved your current settings, you can begin testing.

1) Unzip the "fritzbox-yyyy-LabBETA-xxxxx.zip" file.

2) Use the FRITZ!Box user interface to install the update:

• Select "View: Advanced" in the footer.
• Click "Update" in the "System" menu.
• Switch to the "FRITZ!OS File" tab.
• Follow the instructions displayed on the screen.
• Enter the path to the Lab firmware and the name of the Lab file (FRITZ.Box_xxxx-0x.xx-xxxxx-Labor.image) in the input field. 3) The Lab version is installed on the FRITZ!Box. The FRITZ!Box will then restart.

Restoring your device to how it was before testing:

You can switch back to the official FRITZ!OS at any time under "System > Update > FRITZ!OS Version".

© AVM GmbH 2004—2025. All rights reserved.

This AVM firmware package contains files that are distributed under various licenses, in particular under an AVM proprietary license

or an open-source license (GNU General Public License, GNU Lesser General Public License or FreeBSD License). For details on the various

licenses, see the "license.txt" file (https://download.avm.de/fritzbox/license.txt).

The source code of the files distributed as open source can be requested in writing to fritzbox_info@avm.de.

AVM grants the non-exclusive right to use this AVM firmware package, which is supplied exclusively in object code format.

The licensee may create only one copy of the software, which may be used exclusively for backup purposes.

AVM reserves all intellectual property rights except as expressly granted herein. In particular, without previous approval in writing

and except as permitted by law, this AVM firmware packet may not be reproduced, distributed or in any other manner made publicly accessible, nor may it be edited, disassembled, reverse engineered, translated, decompiled or otherwise "opened" in whole or in part, and subsequently reproduced, distributed or made publicly accessible

JFA20250515

The latest lab file on our download server, "fritzbox-6591-Labor-xxxx.zip", contains

• the lab version for your FRITZ!Box
• this "infolab-en.txt" file with important information on this lab version
• information, feedback options, and the file at en.avm.de/fritz-lab

Neue Features:

• Substitute connection: Greater fallback protection for the internet connection
• Optimized parental controls
• New upload sharing - Sharing files easier than ever
• More possibilities in the smart home

New Features and Improvements in FRITZ!OS 8.10

This FRITZ! Lab contains new functions fresh from the AVM development team and gives a preview of upcoming FRITZ!OS features in the next major update. It also contains the latest developments in the areas of security and energy efficiency.

The FRITZ! Lab launched adds additional control functions to the home network, increases fallback protection for the internet connection, and optimizes the smart home. For the first time, this FRITZ! Lab makes Mesh Repeater mode available for the FRITZ!Box 7590 AX. This allows the FRITZ!Box to be integrated into the home network with even more flexibility and used to improve Wi-Fi coverage. Over the next few months, the FRITZ! Lab will be expanded to include additional features and improvements in a range of areas and will be made available for additional FRITZ!Box models.

New functions of FRITZ!OS 8.10

Internet:

• NEW With the new fallback protection, the FRITZ!Box always stays online: If the internet connection fails, an alternative internet connection is established via the access device of your choice, e.g. via the mobile network with FRITZ!Box 6820 LTE or via USB mobile network dongles (more [1])
• NEW Simplified user guidance on the "Filter" pages (parental controls) (more [2])

Mesh:

• NEW Automatic detection of device type (e.g. smartphone, computer, or printer) for devices displayed in the Mesh Overview

Smart Home:

• NEW Routines can also be triggered by a phone call, by reaching a target temperature, or by activating boost or antifreeze functions, as well as by important events on the FRITZ!Box (more [4])
• NEW With FRITZ!Smart Control 440, the following functions can be controlled: the boost and frost protection functions for radiator controllers, the color and color temperature for lamps, the activation and deactivation of routines, and the display of the QR code for Wi-Fi

Storage (NAS):

• New Upload sharing: Via fritz.nas a folder can be shared for users with a sharing link to upload and download contents, e.g. to collect photos after a family celebration (more [3])

Further Improvements of FRITZ!OS 8.10

Mobile networks:

• Improved Support for emergency calls via VoLTE in provider networks with special emergency/SOS APN (FRITZ!Box 6580 LTE/5G only)

Storage/NAS:

• Improved Simplified generation of sharing links

Internet:

• Improved If the configured time server could not determine the system time, the system time is obtained from a public time server
• Improved Number of tickets to extend online time for devices blocked by parental controls was increased from 10 to 12
• Improved Online Monitor: Reworked display in the diagrams for the load on the internet connection
• Changed FRITZ! devices in the home network, e.g. FRITZ!Repeaters, are no longer offered in parental controls and prioritization; they always have unrestricted internet access with normal priority
• Changed Private IPv4 addresses (RFC 1918) are no longer posted via MyFRITZ!Net (DNS) if a publicly accessibly IPv6 address is available
• Changed When VPN connections are active for which all network traffic is routed via the VPN connection ("full tunnel"), the guest network is excluded from this and routed over the normal internet connection
• Fixed During operation of the FRITZ!Box on an external modem or router, limitations of the internet connection occurred
• Fixed Enabling the UPnP filter had no effects for IPv6
• Fixed For FRITZ! devices operated exclusively via IPv6, under some circumstance there was no search for new FRITZ!OS versions (updates)
• Fixed For providers without support for IPv6, the Online Meter did not count consumption values as long as IPv6 was enabled in the account information of the FRITZ!Box
• Fixed Parental controls: Redeeming tickets to extend online time failed in certain scenarios
• Fixed Potential incorrect display in the Online Meter of the use of data capacity during the billing period
• Fixed Potential internet disruptions when using a large filter list for blocked websites
• Fixed Under certain circumstances, a FRITZ! product operated exclusively via IPv6 could not obtain the system time via the Network Time Protocol
• Improved Translations added
• Improved The probability of being logged out prematurely from certain pages of the user interface was reduced

Wi-Fi:

• Changed Incongruous information text for configuration of the Wi-Fi guest access on the Mesh Repeater removed

DECT/FRITZ!Fon:

• Improved Podcasts can now be continued after interruption

Home Network:

• Fixed In special scenarios it was possible for the IP address 192.168.178.1 to be displayed for a repeater in the home network instead of its own address

Storage (NAS):

• Improved Better interoperability with FTP applications (e.g. Filezilla) through support for MFMT command

System:

• Improved "Forgot Password" function of the push service can now be configured with a freely chosen recipient
• Improved File name for saved settings now includes name of individual FRITZ!Box
• Improved Functional diagnostics now indicates when access for apps is disabled in the home network sharing settings
• Improved Reworked pages of the update functions under "System > Update"
• Improved With "Diagnostics > Function" the services for the Network Time Protocol are checked and relevant information displayed about any errors found
• Improved Translations added
• Fixed Despite correct rate settings, the "Info" LED did not flash when online volume exhausted
• Fixed Incorrect configuration could lead to restart after update in certain rare cases
• Fixed Push service sent the Forgot Password link of devices configured as IP clients with the incorrect IP address

[1] Substitute connection: Greater fallback protection for the internet connection

With the new failover protection, FRITZ!Box users can stay online at all times. If the fiber optic, DSL or cable connection is unstable or drops, any FRITZ!Box connected via WAN/LAN establishes a fallback connection via the mobile network. This feature is ideal for anyone who depends upon a reliable internet connection, be it in the home office or a retail store.

[2] Optimized parental controls

A number of practical optimizations have been included in the first version of FRITZ! Lab. The parental controls now clearly display access profiles and the corresponding devices on one page. Tickets for online time are easier to find on a separate tab and the number of tickets was increased from 10 to 12. This makes managing family internet usage even simpler and more intuitive. Detail improvements were also made to the Online Monitor area. The line graphs have been color-optimized for an even clearer display, and the tooltip that is now is easier to read provides users with more information about the Online Meter.

[3] New upload sharing - Sharing files easier than ever

With the new upload sharing via FRITZ!NAS, sharing files has never been easier: Users can make a folder available via sharing link, allowing others to directly upload and download content – perfect for collecting shared photos or documents. Thanks to the new function, it is no longer necessary to create a FRITZ!Box user with special write permission – instead, all that is needed to allow friends and family to securely upload files is a single link.

[4] More possibilities in the smart home

The update also brings additional control functions for the FRITZ!DECT 440 smart switch. Now all the functions that could be configured directly on the radiator control FRITZ!Smart Thermo 302 can also be controlled with the smart switch.

History of New Functions and Improvements in FRITZ!OS 8.10

Further Improvements of FRITZ!OS 8.10-120711

Internet:

• Fixed According to factory settings, the internet could not be reached after the initial configuration in spite of an established connection

Wi-Fi:

• Fixed The "Loading of the Current Wi-Fi Channel" diagram for the 5-GHz band was not displayed under certain conditions ("Please wait" permanently)
• Fixed When Wi-Fi was disabled, the Box was rendered in the user interface as an IP client (FRITZ!Box 7590 AX)

Telephony:

• Fixed Downloading faxes via the Call List on the user interface caused a logout from the user interface
• Fixed Messages on the answering machine of the FRITZ!Box could not be listened to via the user interface

System:

• Fixed Message about disabled update search was displayed although the automatic update search was enabled
• Improved The probability of being logged out prematurely from certain pages of the user interface was reduced

Further Improvements of FRITZ!OS 8.10-120434

Internet:

• Fixed The data capacity could not be saved on the "Online Monitor > Online Meter > Edit Rate" page

Telephony:

• Fixed No voice transmission during encrypted telephony

Smart Home:

• Fixed The FRITZ!Box's communication with HAN FUN devices (FRITZ!DECT 500, BoxCTRL roller shutter drives from Becker, RolloTron DECT roller shutter belt winders from Rademacher, LED lights for the smart home, adapter plugs, wall switches, door/window contacts, and motion sensors from Deutsch Telekom) was interrupted.

System:

• Fixed The new functions of FRITZ!OS were no longer shown on the "Update" page

Further Improvements of FRITZ!OS 8.10-120207

Internet:

• Fixed After enabling DNS over TLS (DoT), manually configured DNS servers without DoT were not visible in the Connection Details
• Fixed The PCP port range of PCP connections was not displayed in the Online Monitor
• Fixed Under certain circumstances, VPN connections were not displayed in the Mesh Overview
• Fixed When a FRITZ! product was connected to an external modem or a router (IP client mode), internal FRITZ!Box services like online storage, WebDAV, and weather service could not be reached

Wi-Fi:

• Fixed Link from the main page of the user interface to Wi-Fi guest access was incorrect
• Fixed Signaling of WPS corrected in the user interface (FRITZ!Box 6591)
• Fixed The "Loading of the Current Wi-Fi Channel" diagram for the 5-GHz band was not displayed under certain conditions ("Please wait" permanently)
• Fixed Under certain circumstances UPnP clients that were connected with a FRITZ!Box in repeater mode could not establish a connection to UPnP servers

Home Network:

• Fixed In the overview of network connections, very long names of network devices were not displayed correctly
• Fixed Individually assigned names for Mesh Repeaters no longer displayed after update
• Fixed On the detail pages, online time was shown as exhausted although the device was not blocked

System:

• Fixed Message on the start screen about push service not working was incorrect
• Fixed The push service "Wi-Fi guest access" could be edited on Mesh Repeaters although the Mesh Master settings are to be adopted for this push service

Additional Feedback on FRITZ!OS

In addition to direct feedback in our lab area en.avm.de/fritz-lab, there are three additional feedback functions in the user interface which provide information. We have automated the processing of feedback supplied by these functions.

1) Wi-Fi feedback via "Wi-Fi / Wi-Fi Network": Feedback icon after the clients

2) VoIP feedback via "Telephony / Telephone Numbers / Voice Transmission", "Other" column: Feedback icon after each call

Information on the Lab update:

This FRITZ! Lab firmware is a beta version. We've tested it in standard environments before release, but it may still result in bugs. AVM is not liable for any damages that may arise from the use of the Lab version.

Information on working with Lab versions

We appreciate any feedback from our users, which can be submitted at: en.avm.de/fritz-lab. This page also lists all of the current FRITZ! Lab versions with corresponding feedback areas.

Before you start testing the Lab version

1) You haven't installed the latest firmware for your FRITZ!Box yet? You first need to update the firmware to the latest release.

2) Save your current settings under "System / Backup". The saved settings will be needed if you want to switch back from the Lab firmware back to the release firmware.

Testing the Lab version

Once the latest FRITZ!OS version has been installed on your FRITZ!Box and you've saved your current settings, you can begin testing.

1) Unzip the "fritzbox-yyyy-LabBETA-xxxxx.zip" file.

2) Use the FRITZ!Box user interface to install the update:

• Select "View: Advanced" in the footer.
• Click "Update" in the "System" menu.
• Switch to the "FRITZ!OS File" tab.
• Follow the instructions displayed on the screen.
• Enter the path to the Lab firmware and the name of the Lab file (FRITZ.Box_xxxx-0x.xx-xxxxx-Labor.image) in the input field. 3) The Lab version is installed on the FRITZ!Box. The FRITZ!Box will then restart.

Restoring your device to how it was before testing:

You can switch back to the official FRITZ!OS at any time under "System > Update > FRITZ!OS Version".

© AVM GmbH 2004—2025. All rights reserved.

This AVM firmware package contains files that are distributed under various licenses, in particular under an AVM proprietary license

or an open-source license (GNU General Public License, GNU Lesser General Public License or FreeBSD License). For details on the various

licenses, see the "license.txt" file (https://download.avm.de/fritzbox/license.txt).

The source code of the files distributed as open source can be requested in writing to fritzbox_info@avm.de.

AVM grants the non-exclusive right to use this AVM firmware package, which is supplied exclusively in object code format.

The licensee may create only one copy of the software, which may be used exclusively for backup purposes.

AVM reserves all intellectual property rights except as expressly granted herein. In particular, without previous approval in writing

and except as permitted by law, this AVM firmware packet may not be reproduced, distributed or in any other manner made publicly accessible, nor may it be edited, disassembled, reverse engineered, translated, decompiled or otherwise "opened" in whole or in part, and subsequently reproduced, distributed or made publicly accessible

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