FRITZ!Box 7581 Service - Knowledge Base

FRITZ!Box 7581 Service

Wireless range is too low

The range of the wireless connection (WiFi) between a notebook, smartphone, or another wireless device and your FRITZ!Box is too low. Even at a short distance from the FRITZ!Box, web pages load slowly, it takes a long time to download files, and video streams are not played correctly, for example.


  • Surrounding structural conditions (such as thickness and reinforcement of the walls) as well as other electronic devices such as wireless speakers and baby monitors influence the quality and therefore the range and speed of the wireless connection.



1 Installing the latest FRITZ!OS for the FRITZ!Box


2 Installing the latest software for the wireless device

  1. Install the latest driver for the computer's wireless network adapter (for example using Windows Update) or the latest operating system (for example Android, iOS) for the wireless device.

    Note:Information on the update can be obtained from the device's manufacturer, for example refer to the manual. You can find the latest drivers for the FRITZ!WLAN Sticks in our download area.

3 Automatically configuring wireless channel settings

Configure the following settings so that the FRITZ!Box checks the wireless environment at regular intervals and can automatically avoid interference:

  2. Click "Radio Channel" in the "Wireless" ("WLAN") menu.
  3. Enable the option "Set radio channel settings automatically (recommended)".
  4. Click "Apply" to save the settings. Now wireless connections to the FRITZ!Box are briefly cleared and then automatically reestablished.

4 Finding the ideal location for the FRITZ!Box

  1. If possible, place the FRITZ!Box in a central location. FRITZ!Box has omnidirectional antennas. The wireless signal is therefore emitted spherically in all directions.
  2. Do not place the FRITZ!Box directly in the corner of a room.
  3. Place the FRITZ!Box so that it is as unobstructed as possible, i.e. not directly in back of or under an obstacle such as pieces of furniture or a heater.
  4. Place the FRITZ!Box as high in the room as possible, for example on a shelf.
  5. Place the FRITZ!Box so that there are as few obstacles as possible between it and the wireless devices. Even small objects in the immediate vicinity of your FRITZ!Box can greatly reduce the coverage area of the wireless signal. Metallic objects or objects containing water, for example radiators, refrigerators, or even houseplants, significantly reduce the quality of the wireless signal.
  6. Place the FRITZ!Box away from other radio transmitters, for example microwaves, wireless speakers, or Bluetooth devices.

5 Removing USB 3.0 devices

  1. For testing purposes, remove all USB 3.0 devices from the FRITZ!Box's USB ports.
  2. If the problem no longer occurs, a USB device was affecting the wireless connection. Eliminate the interference caused by the USB device.

Now the FRITZ!Box is ideally configured. If the wireless range is still too low despite these measures, the wireless environment is causing the issue and cannot be further influenced by the FRITZ!Box.

Note:You can use a FRITZ!Repeater to quickly and easily increase the range and stability of the wireless network.