FRITZ!Box 7582 Service - Knowledge Base

FRITZ!Box 7582 Service

FRITZ!Box's wireless network cannot be found

One or several notebooks, smartphones, or other wireless device cannot find the FRITZ!Box's wireless network (WiFi). When it searches for wireless networks, it does not display the name of the FRITZ!Box's wireless network (SSID).

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 is solved.

1 Enabling the wireless network

The following step is only necessary if the "WLAN" LED on the FRITZ!Box is not lit:

  1. Briefly push the "WLAN" button on the FRITZ!Box to enable the wireless network. If you enabled keylock in the FRITZ!Box:
    1. Click "Wireless" ("WLAN") in the FRITZ!Box user interface.
    2. Click "Radio Network" in the "Wireless" ("WLAN") menu.
    3. Enable the wireless network.
    4. Click "Apply" to save the settings.

2 Enabling the wireless network adapter

Some notebooks have a special switch or a key combination that can be used to switch integrated wireless network adapters on and off:

  1. Enable the wireless adapter of the wireless device that you want to connect to the FRITZ!Box's wireless network.

    Note:Information on on enabling it can be obtained from the manufacturer, for example refer to the manual.

3 Adjusting the FRITZ!Box's wireless settings

Preparations

  1. Use a network cable to connect a computer to the "LAN 2" port on the FRITZ!Box so you can open the user interface and adjust the wireless settings.

Enabling the 2.4 and 5 GHz frequency bands

Many wireless devices only support wireless connections in the 2.4 GHz frequency band. To ensure that the wireless device can establish a connection to the FRITZ!Box, enable the 2.4 GHz and 5 GHz frequency band in the FRITZ!Box:

  1. Click "Wireless" ("WLAN") in the FRITZ!Box user interface.
  2. Click "Radio Network" in the "Wireless" ("WLAN") menu.
  3. In the "Active frequency bands" section, enable the wireless network for the 2.4 and 5 GHz frequency band.
  4. Click "Apply" to save the settings.

Displaying the name of the wireless network (SSID)

Some wireless devices cannot establish a wireless connection if the name of the wireless network is not visible:

Note:Hiding the wireless network name can pose a security risk (see article in PC World: 5 Wi-Fi security myths you must abandon now).

  1. Click "Wireless" ("WLAN") in the FRITZ!Box user interface.
  2. Click "Radio Network" in the "Wireless" ("WLAN") menu.
  3. Enable the option "Name of the wireless radio network visible".
  4. Click "Apply" to save the settings.

Automatically configuring 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.

Adjusting the wireless channel in the 5 GHz frequency band

Some wireless devices do not support channels 52 to 140 in the 5 GHz frequency range:

  1. Click "Wireless" ("WLAN") in the FRITZ!Box user interface.
  2. Click "Radio Channel" in the "Wireless" ("WLAN") menu.
  3. Enable the option "Adjust radio channel settings".
  4. Select a channel between 36 and 48 from the "Wireless channel in 5-GHz frequency band" drop-down list.
  5. Click "Apply" to save the settings.

4 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 how to update it can be obtained from the manufacturer, for example refer to the manual. You can find the latest drivers for the FRITZ!WLAN Sticks in our download area.

5 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.

6 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.

7 Testing a different wireless device

  1. Test whether a different wireless device can find the FRITZ!Box's wireless network.
    • If the other wireless device can find the FRITZ!Box's wireless network, the first wireless device may be defective.