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Knowledge document #1278

FRITZ!Box reports "DynDNS: Account temporarily disabled"

The dynamic DNS account configured in the FRITZ!Box cannot be successfully registered with the dynamic DNS provider. The message "DynDNS [...] Status: account temporarily disabled" is displayed on the overview page of the FRITZ!Box user interface. One of the following error messages may be displayed in the event log of the FRITZ!Box:

  • "DynDNS error: DynDNS update is disabled until the DynDNS registration data are changed."
  • "DynDNS error: The DynDNS provider reports error 401 - bad authorization."

Cause

  • When errors indicating a permanent error with a dynamic DNS account occur, the FRITZ!Box disables the account according to the specifications of the dynamic DNS provider. Such errors include a missing public IP address, incorrect login information, or numerous login attempts from different dynamic DNS clients. The account remains disabled until you re-enter the login information in the FRITZ!Box.

Simply proceed as described below. After each measure, check whether the problem is solved.

Note:All instructions on configuration and settings given in this guide refer to the latest FRITZ!OS for the FRITZ!Box.

1 FRITZ!Box cannot be reached in the internet

You can only use a dynamic DNS service if the FRITZ!Box has an IPv6 or IPv4 address that can be reached on the internet.

You can find out whether the FRITZ!Box has an IP address that can be reached on the internet using the guide Checking accessibility of the FRITZ!Box in the internet.

2 Disabling other dynamic DNS clients

Errors occur if several devices transmit their IP address to the same dynamic DNS account. Therefore, make sure that the dynamic DNS account is only configured in the FRITZ!Box:

  1. Disable or delete the dynamic DNS account configured in the FRITZ!Box in all devices except for the FRITZ!Box, for example other routers, computers with DynDNS software, or NAS systems.

3 Re-entering the dynamic DNS login information

  1. Click "Internet" in the FRITZ!Box user interface.
  2. Click "Permit Access" in the "Internet" menu.
  3. Click on the "DynDNS" tab.
  4. In the "Domain name" field, enter the entire domain name, for example mydomain.dyndns.com. For information on the format, refer to the dynamic DNS provider.
  5. Click "Apply" to save the settings.

Now the FRITZ!Box transmits its current IP address to the dynamic DNS provider each time it connects to the internet.

4 Contacting your provider

If the dynamic DNS account configured in the FRITZ!Box is still disabled, the login information is incorrect or the dynamic DNS provider may be experiencing technical difficulties:

  1. Contact your dynamic DNS provider for a solution.
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