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Knowledge document #1264
FRITZ!Box 6591 Cable
This support document is available for the following products:

Cannot register a FRITZ!DECT smart plug

Registration of the smart plug, for example FRITZ!DECT 200, fails. After the automatic configuration, the DECT LED flashes continuously and the DECT connection between the FRITZ!Box and the smart plug FRITZ!DECT is not established.

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

1 Unlocking the buttons

  1. Click "System" in the FRITZ!Box user interface.
  2. Click "Buttons and LEDs" in the "System" menu.
  3. Click on the "Keylock" tab.
  4. Disable the "Buttons locked" checkbox.
  5. Click "Apply" to save the settings.

2 Disabling "Reduce DECT field strength"

  1. Click "Telephony" in the FRITZ!Box user interface.
  2. Click "DECT" in the "Telephony" menu.
  3. Disable the option "Reduce DECT field strength" in the section "Radio Field Strength".
  4. Click "Apply" to save the settings.

3 Disabling "DECT Eco"

  1. Click "Telephony" in the FRITZ!Box user interface.
  2. Click "DECT" in the "Telephony" menu.
  3. Disable the option "DECT Eco" in the section "Radio Field Strength".
  4. Click "Apply" to save the settings.

4 Enabling encryption

  1. Click "Telephony" in the FRITZ!Box user interface.
  2. Click "DECT" in the "Telephony" menu.
  3. Enable the option "Permit only secure DECT connections (recommended)" in the section "Security".
  4. Click "Apply" to save the settings.
  5. If the option was disabled, you must then restart the FRITZ!Box once using the user interface ("System > Backup > Restart").

5 Re-registering FRITZ!DECT

Deregistering FRITZ!DECT

  1. Push the DECT button on FRITZ!DECT and hold it down for at least 6 seconds.

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.

Registering FRITZ!DECT

  1. Plug the FRITZ!DECT into a power outlet near the FRITZ!Box.
  2. Click "Smart Home" in the FRITZ!Box user interface.
  3. Click "Devices and Groups" in the "Smart Home" menu.
  4. Click the "Register Device" button.
  5. Within 2 minutes: Push the DECT button on FRITZ!DECT. Hold down the button for at least 6 seconds until the DECT LED starts to flash quickly. The FRITZ!DECT is in registration mode as long as the LED flashes quickly.

The DECT LED on the FRITZ!DECT remains lit as soon as the DECT connection has been established. Then you can plug the FRITZ!DECT in wherever you want; you can configure and operate it in the "Smart Home" area of the FRITZ!Box user interface.



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