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Dokument informacyjny #1430

FRITZ!Box reports "Authentication error occurred" when using Google calendar

The error message "Authentication error occurred" is displayed for the Google calendar on the tab "Switch Automatically" in the FRITZ!Box user interface by the profile of FRITZ!DECT.

Cause

  • The FRITZ!Box's access rights to the calendar were removed in the Google account.

1 Deleting a calendar

Before requesting access to the calendar again, you must first delete all of the Google calendars in the FRITZ!Box:

  1. Click "Smart Home" in the FRITZ!Box user interface.
  2. Click "Devices and Groups" or "Device Management" (if you want to delete the calendar for an individual device) or "Groups and Templates" (if you want to delete the calendar for a group) in the "Smart Home" menu.
  3. Click the (Edit) button for the respective device or group.
  4. Click on the "Switch Automatically" tab.
  5. Click the link "Remove connections from Google calendar".
  6. Click the "Reset Google Calendar" button.
  7. Click "OK" when you are asked whether you want to delete all Google calendars from the FRITZ!Box.

Now all Google calendars are deleted and all of the smart home devices that use a Google calendar are set to manual switching.

2 Adding a calendar

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