Force 5 GHz WLAN on Pi 3 B+ by editing the CRDA Database

  • I haven't found that option inside guisettings.xml. If you really want to force 5GHz usage, you have to compile your own version of LE.

    You can try to find a channel number inside the 2.4GHz frequency band, which is not overloaded by other WLAN users (router option).

  • I thought so...

    Thank you anyway.

    The automatic feature of the router to change the band is a nice thing all in all. But not in this case :D. I'm running a TVHeadend server on my pi. When I start streaming to the Client and the router realizes the traffic, it does change to 5 GHz after a few minutes.

    I did allow the channels 12 and 13 and this helped.

    But until it changes, performance is just not that great.

    I realized that the 5 GHz module on my router has a different MAC-Address.

    Does iw have a command to specify the Mac address rather than the ssid?