How to achieve the best WiFi performance

Optimizing the wireless network

At home, the wireless network (WiFi) usually represents the most common method for accessing the Internet. Smartphone and tablet users are especially dependent upon solid wireless reception. Since they change location often, ideally the wireless network should cover all rooms. The FRITZ!Box is already ideally configured for most wireless environments in the factory settings. If the wireless speed or network coverage is inadequate, the following simple steps will help you to optimize the wireless network.

1 Finding the ideal location for wireless devices

  • If possible, position the FRITZ!Box in a room that is centrally located.
  • Do not position the FRITZ!Box directly in the corner of a room.
  • 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.
  • Position the FRITZ!Box as high in the room as possible, for example on a shelf.
  • Position the FRITZ!Box so that there are as few obstacles as possible between it and the other wireless devices. In particular, metallic objects or objects containing water (for example a refrigerator, houseplants) significantly reduce the quality of the wireless signal.
  • Position the FRITZ!Box so that it is away from other transmitters (for example microwaves, baby monitors, wireless speakers, Bluetooth devices).

2 Installing the latest software

Installing the latest FRITZ!OS for the FRITZ!Box

Installing the latest software for the wireless device

  • 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:You can find information on updating the wireless network adapter or wireless device in its manual, or consult the manufacturer directly.
    You can find the latest drivers for the FRITZ!WLAN Sticks in our download area.

3 Changing the name of the wireless network (SSID)

If there are other wireless networks with the same name in the vicinity, wireless devices may automatically attempt to connect to the wrong wireless network. To avoid this, give your FRITZ!Box a unique name:

  1. Click "Wireless" ("WLAN") in the FRITZ!Box user interface.
  2. Click "Radio Network" in the "Wireless" ("WLAN") menu.
  3. In the field "Name of the wireless radio network (SSID)," enter a name of your choice for the frequency band you are using that does not contain special characters.

    Important:Not all wireless devices support all special characters. Therefore, only use standard Latin letters (not letters such as ä, ë, ö, ü, á, é, í) and numbers in the wireless network name.

  4. Click "Apply" to save your settings.

When you apply the new wireless network name, all wireless connections to the FRITZ!Box are cleared. You must then reconfigure wireless connections to the FRITZ!Box.

4 Identifying sources of interference

  1. Turn off all devices that could interfere with the wireless network, one after the other.

    Note:All devices that emit radio waves are possible sources of interference. These include other wireless devices, wireless speakers, Bluetooth devices, baby monitors or microwaves, for example.

  2. Check whether the wireless connection is still impaired.
    • If the wireless connection is no longer impaired:
      1. Turn the devices back on, one after the other.
      2. After you have turned on each individual device, check whether the wireless connection is still impaired.
        • If you identify a device or devices causing interference, you have the following options:
          • Leave the device turned off,
            • or:
          • Adjust the wireless channel manually (see the section "Selecting the best wireless channel"),
            • or:
          • Switch to a different frequency band (see the section "Establishing a wireless connection to the 5 GHz frequency band").

5 Selecting the best wireless channel

  1. Click "Wireless" ("WLAN") in the FRITZ!Box user interface.
  2. Click "Radio Channel" in the "Wireless" ("WLAN") menu.
  3. In the "Wireless Environment" section, click on the tab for the wireless frequency band being used (if available).
  4. Click on the link "Show disturbances to wireless network" (if available).
  5. Use the graph to determine which channel in the lower frequency range is least affected by other wireless networks and sources of interference.
  6. Enable the option "Adjust radio channel settings" in the "Radio Channel Settings" section.
  7. From the drop-down list "Radio channel", select the channel that was affected the least in the wireless frequency band being used.
  8. Click "Apply" to save your settings.
  9. Check whether the issue with your wireless connection still occurs.
    • If the issue with the wireless connection still occurs:
      • Repeat steps 3 - 9 with a wireless channel in the middle and then with one in the higher frequency range. Once you have finished testing, use the wireless channel that was least affected by disturbances.

        Important:The diagram of the wireless environment only reflects the current situation! The allocation of the frequency bands can change significantly over the course of the day because many wireless networks are turned on when in use. Therefore, check several times to see which wireless channels are least affected by interference.

6 Setting the maximum transmitter power

  1. Click "Wireless" ("WLAN") in the FRITZ!Box user interface.
  2. Click "Radio Channel" in the "Wireless" ("WLAN") menu.
  3. Check which wireless channel setting is enabled.
    • If the option "Set radio channel settings automatically (recommended)" is enabled:
      • Proceed with the following section.
    • If the option "Adjust radio channel settings" is enabled:
      1. Click "Additional settings" (if available).
      2. Select "100%" from the drop-down list "Maximum transmitter power".
      3. Click "Apply" to save your settings.

7 Enabling WPA2 encryption

Current wireless standards require secure WPA encryption. If you enable the encryption method "WPA + WPA2" in the FRITZ!Box, all wireless devices automatically use the safest WPA mode for wireless connections:

  1. Click "Wireless" ("WLAN") in the FRITZ!Box user interface.
  2. Click "Security" in the "Wireless" ("WLAN") menu.
  3. Enable WPA encryption.
  4. Select "WPA + WPA2" for the "WPA mode".
  5. Enter a network key in the "Network key" field.

    Important:To ensure optimal security, the password should be at least 20 characters long and contain capital and lower-case letters (but not letters such as ä, ë, ö, ü, é, í), digits, and other characters.

  6. Click "Apply" to save your settings.

8 Establishing a wireless connection to the 5 GHz frequency band

The 5 GHz frequency band is subject to interference less frequently. Therefore, switch to this frequency band if your FRITZ!Box and your wireless devices support the 5 GHz frequency band:

  1. Click "Wireless" ("WLAN") in the FRITZ!Box user interface.
  2. Click "Radio Network" in the "Wireless" ("WLAN") menu.
  3. Enable the option "Wireless radio network enabled" in the "5-GHz Frequency Band" section.
  4. Enter a different name in the field "Name of the wireless radio network (SSID)" so that you can distinguish the 5 GHz wireless network from the 2.4 GHz wireless network in the future.

    Important:Not all wireless devices support all special characters. Therefore, only use standard Latin letters (not letters such as ä, ë, ö, ü, á, é, í) and numbers in the wireless network name.

  5. Click "Apply" to save your settings.
  6. Establish a wireless connection to the FRITZ!Box wireless network with the name (SSID) that you assigned to the 5 GHz frequency band.