The FRITZ!Box automatically checks the WLAN location to select the optimum radio channel settings. On this page you can adjust the settings as needed.

Radio Channel Settings

• Set radio channel settings automatically (recommended)
  With this option the FRITZ!Box automatically checks the WLAN location to select the optimum radio channel settings.
• Adjust radio channel settings
  The following radio channel settings can be adjusted to meet your needs.
• WLAN standard
  With this setting you specify a WLAN standard. The standards are "802.11n+g+b" for the 2.4-GHz band and "802.11n+a" for the 5-GHz band.
• Frequency band
  FRITZ!Box WLAN transmits in either the 2.4-GHz (ISM) band or in the 5-GHz band, but not simultaneously in both bands. Due to the multitude of users (WLAN, Bluetooth, microwave devices etc.), the 2.4-GHz band is loaded more than the 5-GHz band.
  Note: If the FRITZ!Box detects the presence of a so-called "higher-priority user" in the 5-GHz band, such as radar, for instance, it automatically switches channels.
• Radio channel
  If you select the "Autochannel" setting instead of a fixed channel, the FRITZ!Box independently searches the WLAN environment for networks in the vicinity and sets the optimum channel. This process can take 30 seconds or more. During this period no WLAN device can register at the FRITZ!Box.
• WLAN autochannel including channel 12/13
  When "Autochannel" is selected, with this option all available radio channels will be included in the automatic search. Please note that some WLAN devices (like notebooks, for example) may not be able to use the channels 12 and 13 due to erroneous configurations. Establishing a WLAN connection to the FRITZ!Box via one of these channels will not be possible in such a case.
• Use radio channels optimized for 300 Mbit/s
  If this option is enabled, FRITZ!Box attempts to use radio channels with a bandwidth of 40 MHz. These channels allow a maximum of 300 Mbit/s to be transported over WLAN in accordance with the 802.11n standard; while at 20 MHz, a maximum of 130 Mbit/s is possible. If not enough space is available in the radio spectrum to allow interference-free transmission on the channel with bandwidth of 40 MHz, the bandwidths are automatically reduced to 20 MHz ("fallback") with a correspondingly lower transmission capacity.
• Automatically reduce transmission power to the actual needs
  When this option is enabled, the FRITZ!Box independently reduces the transmitter power to the necessary value when the quality of the WLAN connection is good. This serves to reduce radiation emissions.
• Maximum transmitter power
  The range of the radio waves can be influenced by adjusting the transmitter power.
• Optimize WLAN transmission for IPTV applications
  With this option TV transmissions via WLAN that are based on the Internet protocol (IP) will have the highest priority during data transmission.

WLAN Location

The WLAN Location area displays the allocation of radio channels by other wireless networks in the vicinity.

• The "Hide / Show Disturbances" option displays the graph of which radio channels are already being used by other wireless networks. Overlapping of radio channels can lead to reduced throughput rates, ranges, or even interrupted connections in the participating WLAN radio networks. If your WLAN connection is unstable, look for a better channel in the graph and then select it under "Adjust radio channel settings".
• All radio networks found at your location are displayed in a table indicating their signal strength, name, radio channel used, and MAC address.

Click the "Apply" button to implement your changes to the settings.