FRITZ!Box 4040 Service - Knowledge Base

FRITZ!Box 4040 Service

Slow wireless connection according to 802.11g/b

The data rate of a wireless connection (WiFi) according to the wireless standard 802.11g or 802.11b is lower than allowed by the wireless standard.

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 persists.

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 your computer's wireless network adapter or the latest operating system, for example Android, iOS, for the wireless device.

    Note:Refer to the manufacturer for information on how to update, for example consult 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 on a regular basis and automatically selects the best wireless channel settings.

  1. Click "Wireless" ("WLAN") in the FRITZ!Box user interface.
  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, position 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 position the FRITZ!Box directly in the corner of a room.
  3. Position 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. Position the FRITZ!Box as high in the room as possible, for example on a shelf.
  5. Position 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. Position 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, then a USB device was affecting the wireless connection. Eliminate the interference caused by the USB device.

6 Disabling Bluetooth for testing purposes

Bluetooth influences the wireless speed in the 2.4 GHz frequency band, which is particularly noticeable when using real-time applications such as video streaming:

  1. Disable Bluetooth on the wireless device (for example smartphone, tablet).

7 Using a wireless device that supports 802.11n or 802.11ac

  1. Use a wireless device that supports the wireless standard 802.11n or 802.11ac to establish the wireless connection. With these standards you can achieve wireless user data rates that are significantly higher.

    Note:Refer to the manufacturer of the device for information on the range of functions, for example consult the manual.
    All current FRITZ!WLAN Sticks support 802.11n.
    FRITZ!WLAN Stick AC 430 and AC 860 also support 802.11ac.