FRITZ!WLAN Repeater 1750E Service - Knowledge Base

FRITZ!WLAN Repeater 1750E Service
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Restoring the FRITZ!OS of your FRITZ!WLAN Repeater

The recovery tool can be used to restore your FRITZ!WLAN Repeater to working order. When you use the recovery tool, the repeater is restored to its condition upon delivery. This way you can delete incorrect settings that prevent the repeater from functioning properly.


  • Windows 10 / 8 / 7 is installed on the computer.

1 Downloading the recovery tool

  1. Call up in your web browser.
  2. Switch to the folder for your FRITZ!WLAN Repeater model, then to the subfolder "x_misc", and then to the folder named "english".
  3. Download the recovery tool for your FRITZ!WLAN Repeater to your computer. It has the file extension ".exe".

2 Connecting the computer with the repeater

  1. Use the network cable included with delivery to connect the computer directly to the "LAN" port on the FRITZ!WLAN Repeater.
  2. Clear all other connections between your FRITZ!WLAN Repeater and other network devices.

3 Disabling firewalls

ATTENTION!Only disable firewalls when applying the recovery tool and re-enable them before establishing an Internet connection. This software protects your computer from attacks from the Internet and prevents other threats (for example computer viruses) from being executed.

  1. Disconnect the computer from the Internet and do not reconnect it until you have restarted your firewall.
  2. Configure all firewalls on your computer (e.g. ZoneAlarm, Norton Security) so that they are not automatically re-enabled when your computer restarts.
  3. Close any active firewall applications.
  4. Disable the Windows firewall:

    Windows 10

    1. Click "Start" and then "Settings".
    2. Click "Network and Internet" and then "Windows Firewall".
    3. Disable the Windows firewall.

    Windows 8

    1. Press the keyboard shortcut "Windows key" + "X" and select "Control Panel" from the context menu.
    2. Click "System and Security" and then "Windows Firewall".
    3. Disable the Windows firewall.

    Windows 7

    1. Click "Start" and "Settings" (if available).
    2. Control Panel > (System and Security >) Windows Firewall
    3. Disable the Windows firewall.

4 Applying the recovery tool

  1. Run the file "fritz.wlan_repeater...recover-image.exe" and click "Next".
  2. Follow the instructions.
    • If the tool displays an error message such as "Recovery failed due to an error":
      • Run the recovery tool again. If recovery fails after several attempts, connect the FRITZ!WLAN Repeater to another computer and run the recovery tool on that computer.
    • When the recovery tool displays the message "Complete - FRITZ!WLAN Repeater successfully restored!", then the recovery process was ended successfully.

5 Error when running the recovery tool

If the recovery tool cannot find the FRITZ!WLAN Repeater or it displays the error message "Could not determine the version!", proceed as follows:

Recovery tool cannot find the FRITZ!WLAN Repeater

The recovery tool cannot find the FRITZ!WLAN Repeater and keeps giving you the error message "Searching FRITZ!WLAN Repeater at: [IP address]".

  1. Do not click "Next," click "Cancel" twice instead.
  2. Close any active firewall applications again.
  3. Run the recovery tool again.

Error message "Could not determine the version!"

  1. Abort the recovery procedure.
  2. Call up the Windows Device Manager:
    1. Press the Windows key and the pause key on the keyboard at the same time.
    2. Click "Device Manager".
  3. Under "Network adapters", double-click the LAN network adapter that is connected to the FRITZ!WLAN Repeater. Select the tab for the advanced settings (for example "Advanced" or "Advanced Settings").
  4. Select the property for setting the transmission rate (for example "Transmission Rate", "Connection Type", "Media Type").
  5. Select the value "10 Mbit/s, half-duplex" or similar and click "OK".
  6. Run the recovery tool again.