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Dokument informacyjny #3252

The FRITZ!Box's WLAN LED flashes

The FRITZ!Box's WLAN LED flashes continuously. Wireless devices cannot establish a Wi-Fi connection to the FRITZ!Box and one of the following error messages might be displayed in the event log of the FRITZ!Box:

  • "The Wi-Fi module was not initialized correctly. Please restart the FRITZ!Box! (#0101)"
  • "The Wi-Fi module was not initialized correctly. Please restart the FRITZ!Box! (#0102)"
  • "The Wi-Fi module was not initialized correctly. Please restart the FRITZ!Box! (#02EA)"

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

1 Restarting the FRITZ!Box

  1. Unplug the FRITZ!Box for 5 minutes.

    Note:The FRITZ!Box settings are retained when you unplug it. After you plug the FRITZ!Box in again, it takes about 2 minutes for it to restart. During this time, you cannot access the FRITZ!Box.

2 Using the correct power adapter

Using an unsuitable power adapter for the FRITZ!Box is one of the most common causes of error:

  1. Use a suitable power adapter to plug in your FRITZ!Box.

3 Installing the latest FRITZ!OS

Perform the following steps with another device connected to the FRITZ!Box with a network cable:

Important:If you cannot access the FRITZ!Box with any device, proceed as described in the guide FRITZ!Box user interface cannot be opened.

  1. Install the latest FRITZ!OS on the FRITZ!Box.

4 Setting Wi-Fi channel settings automatically

Incorrect Wi-Fi settings can prevent the FRITZ!Box from properly initializing the Wi-Fi network:

  1. Click "Wi-Fi" ("Wireless") in the FRITZ!Box user interface.
  2. Click "Wi-Fi Channel" ("Radio Channel") in the "Wi-Fi" ("Wireless") menu.
  3. Enable the option "Set Wi-Fi channel settings automatically (recommended)".
  4. Click "Apply" to save the settings. Now Wi-Fi connections to the FRITZ!Box are briefly cleared and then automatically re-established.

5 Reconfiguring FRITZ!Box as a Mesh Repeater

The following steps are only necessary if the FRITZ!Box is to be used as a Mesh Repeater:

  1. Reconfigure the FRITZ!Box as a Mesh Repeater. If you want to connect the FRITZ!Box with an existing Mesh Repeater, proceed as described in the guide Connecting the FRITZ!Box with the Mesh Repeater (cascading).
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