Some 5 GHz wifi channels are disabled in Raspberry Pi 4

Hi, I just installed EndeavourOS on my Raspberry Pi 4. My router’s wifi is in the 60 channel and can’t connect because some of the 5 GHz channels are disabled. The registered domain is set to US. The channels 32 to 48 works fine, because I can see my neighborhood SSIDs. With Raspberry Pi OS and with Manjaro everything works fine out of the box with the same registered domain.

thats because some 5GHz WiFi frequencies are also used for radar - they are disabled by some devices to avoid issues.
Google devices (at least the Nexus and Pixel devices in Europe) can’t see 5Ghz Wifi Channels 52 to 128 due to that (not sure if I remember the upper limit correctly but pretty sure about the lower limit)

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Thanks for giving EndeavourOS Arm a try. Welcome to the forum, I hope you enjoy your time here.

This site has some instructions for adding WiFi channels in wpa_supplicant. Maybe that can help?



Welcome to the forum @jpberdejo :partying_face::tada::balloon:

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Thanks, that’s right, the channels disabled require DFS/TPC to avoid radar interference, but that doesn’t explain why with Manjaro works fine, but with Endeavour are full disabled in the same Raspberry Pi 4.

Thanks, I try the wpa_supplicant fix, but didn’t work. I think the problem probably is in the driver, because the iwlist list of available frequencies doesn’t report these channels:

[root@raspi4 juanp]# iwlist wlan0 freq
wlan0     20 channels in total; available frequencies :
          Channel 01 : 2.412 GHz
          Channel 02 : 2.417 GHz
          Channel 03 : 2.422 GHz
          Channel 04 : 2.427 GHz
          Channel 05 : 2.432 GHz
          Channel 06 : 2.437 GHz
          Channel 07 : 2.442 GHz
          Channel 08 : 2.447 GHz
          Channel 09 : 2.452 GHz
          Channel 10 : 2.457 GHz
          Channel 11 : 2.462 GHz
          Channel 36 : 5.18 GHz
          Channel 40 : 5.2 GHz
          Channel 44 : 5.22 GHz
          Channel 48 : 5.24 GHz
          Channel 149 : 5.745 GHz
          Channel 153 : 5.765 GHz
          Channel 157 : 5.785 GHz
          Channel 161 : 5.805 GHz
          Channel 165 : 5.825 GHz

then it might be an update that changed the driver behaviour, that most likely is not yet available on other distributions. Manjaro always hangs behind some days to weeks.