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Wireless device cannot find the 6 GHz Wi-Fi network
A wireless device cannot find the FRITZ!Box's 6 GHz Wi-Fi network although the wireless device supports connections over 6 GHz. The following error message is displayed when you attempt to establish a connection using the QR code with the FRITZ!Box's Wi-Fi access information:
"Failed to connect to network [SSID]"
Cause
- When establishing a connection, the wireless device only searches for Preferred Scanning Channels (PSC) and omits the channel that the FRITZ!Box is currently using.
Preferred Scanning Channels are specific Wi-Fi channel in the 6 GHz Wi-Fi network that some wireless devices prefer when searching for available Wi-Fi networks. There are very many Wi-Fi channels in the 6 GHz Wi-Fi network. When wireless devices search for 6 GHz Wi-Fi networks, Preferred Scanning Channels speed up the search since the devices do not have to scan the entire spectrum.
Currently, the FRITZ!Box's auto channel function does not give priority to Preferred Scanning Channels. We will include optimizations in a future FRITZ!OS update so that the auto channel function will prioritize Preferred Scanning Channels. Until then, configure a fixed channel that is one of the Preferred Scanning Channels.
1 Adjusting the Wi-Fi channel settings
- Click "Wi-Fi" ("Wireless") in the FRITZ!Box user interface.
- Click "Wi-Fi Channel" ("Radio Channel") in the "Wi-Fi" ("Wireless") menu.
- Enable the option "Adjust Wi-Fi channel settings".
- From the drop-down list "Wi-Fi channel", select one of the Preferred Scanning Channels (Wi-Fi channel 5, 21, 37, 53, 69 or 85) for the 6 GHz Wi-Fi network.
- Click "Apply" to save the settings.