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FRITZ!Box reports "Unspecified error occurred" when adding a Google calendar

When setting up automatic switching for an outlet switch, for example FRITZ!DECT 200 or a LED light FRITZ!DECT 500, you cannot add a Google calendar. During the authentication process, the error message "The authentication process for the Google Calendar could not complete the procedure successfully. Unspecified error (code:=1) occurred" is displayed.

Cause

  • The authentication process was canceled previously.

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

1 Restarting the FRITZ!Box

  1. Click "System" in the FRITZ!Box user interface.
  2. Click "Backup" in the "System" menu.
  3. Click on the "Restart" tab.
  4. Click the "Restart" button.

2 Adding a calendar

  1. Add the Google calendar for the smart home device.