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Knowledge Base document #3406

FRITZ!Fon C4

This support document is available for the following products:

Time change does not work

The automatic change to summer or winter time does not work. The FRITZ!Box and some or all of the registered cordless phones still display the time that was valid before the time change.

1 Restarting the FRITZ!Box

Restart the FRITZ!Box. After the restart, the FRITZ!Box receives the time from a time server on the internet.

Click on 'System' in the FRITZ!Box user interface.
Click on 'Backup' in the 'System' menu.
Click on 'Restart FRITZ!Box' and then on 'Restart'.
- If 'Restart FRITZ!Box' is not displayed, click on the 'Restart' tab and then on the 'Restart' button.

2 Switching the phone off and on again

Restart your cordless phones. After the restart, the phones receive the time from the FRITZ!Box's time server.

Press the end call key (red handset) on the phone until the phone turns off.
Press and hold the end call key again until the phone turns on again.