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Knowledge Base document #241

Slow LAN connection to the FRITZ!Repeater

The speed of the LAN connection to the FRITZ!Repeater is only 10 or 100 Mbit/s although the device supports LAN connections of 1 Gbit/s or more (gigabit LAN).

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

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

1 Connecting a device directly with the FRITZ!Repeater

This step is only necessary if the device is connected to the FRITZ!Repeater by means of a hub/switch, powerline device, LAN/Wi-Fi converter, or other device instead of being connected directly to the FRITZ!Repeater:

  1. Connect the device directly to a LAN port on the FRITZ!Repeater. If possible, use the network cable included with the FRITZ!Repeater.
  2. If you can establish a gigabit LAN connection to the FRITZ!Repeater now, then the intermediary device or its cabling does not support gigabit LAN:
      1. Make sure that the devices support gigabit LAN.
      2. Update the software / firmware of the devices.
      3. Use different network cables to connect the devices to the FRITZ!Repeater. Use the shortest possible high-quality network cables (CAT 5e or higher).

2 Testing a different cable

The network cable used to connect the device to the FRITZ!Repeater may be too long, incorrectly wired, or defective:

  1. Use the shortest possible high-quality network cable to connect the device to the FRITZ!Repeater, for example use the network cable included with the FRITZ!Repeater.

    Note:Any standard network cable CAT 5e or higher (STP, 1:1) with a maximum length of 100 m can be used to connect network devices to the FRITZ!Repeater.

3 Installing the latest software for the device

  1. Install the latest software version for the device or the latest driver for the computer's LAN network adapter.

    Note:Since Windows Update often does not offer the latest drivers, install the drivers from the manufacturer's website, for example from the Intel Download Center.

4 Disabling energy-saving functions for the network adapter

  1. If any energy-saving functions are enabled for the computer's LAN network adapter or the device, disable them for testing purposes.

    Note:In Windows, different power saving functions can be set for many network adapters under 'Properties > Power Management' in the Device Manager.

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