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Dokument informacyjny #3762

Cannot register FRITZ!DECT 350

Registration of the door/window contact FRITZ!DECT 350 to the FRITZ!Box fails. After you push the DECT or Connect button on the FRITZ!Box, the DECT connection is not established. The door/window contact is not displayed or is displayed with an inactive connection in the menu "Smart Home" in the FRITZ!Box.

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

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

1 Maximum number has been reached

A certain number of smart home devices can be registered with the FRITZ!Box. If you already registered the maximum number of devices, you cannot register any more, and therefore no smart plugs.

2 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.

3 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.

4 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.

5 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").

6 Setting a PIN

For automatic registration to work, you must set the PIN to "0000" in the FRITZ!Box user interface:

  1. Click "Telephony" in the FRITZ!Box user interface.
  2. Click "DECT" in the "Telephony" menu.
  3. Enter "0000" as the PIN in the section "Registration".
  4. Click "Apply" to save the settings.

7 Resetting FRITZ!DECT 350 and deregistering it

You can restore FRITZ!DECT 350 to its factory settings to delete all of the settings that are preventing a connection to the FRITZ!Box from being established. Then you can delete a faulty connection to the FRITZ!Box:

Loading the factory settings of FRITZ!DECT 350

Loading the factory settings of FRITZ!DECT 350
  1. Open the housing of FRITZ!DECT 350.
  2. Pick up the pin included with delivery.
  3. Carefully insert the pin into the "Reset" opening inside the housing for at least one second. The LED inside the sensor begins to flash and the factory settings are loaded.

Deregistering the door/window contact

If FRITZ!DECT 350 is displayed under "Smart Home > Devices and Groups" in the user interface of your FRITZ!Box, you must delete it:

  1. Click "Smart Home" in the FRITZ!Box user interface.
  2. Click "Devices and Groups" in the "Smart Home" menu.
  3. Click the "Delete Device" button.
  4. Click the (Delete) button next to the respective device.
  5. Click the "Finished" button.
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