I have some issues with 5 GHz wifi on my Pi 3B+, it won't discover 5 GHz networks but only 2.4 GHz. I have set the wifi country, try to force the connection with correct SSID / password on the wpa_supplicant.conf file but none of them works.
Here is my wpa_supplicant.conf :
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=FR
network={
ssid="Bbox-XXXXXXXX"
psk="XXXXXXXXXXXXXXXXXXXXXXXX"
key_mgmt=WPA-PSK
}
When I try sudo iw wlan0 scan | grep 'freq:'
there is only frequencies like 24XX. Also, I have set a static IP for this device (there is a website hosted). What could be wrong ?
iw list | grep -P "5\d+ MHz"
?* 2452 MHz [9] (20.0 dBm) *2457 MHz [10] (20.0 dBm)
@tlfong01 Damn it's bad, I have done a full upgrade but still the same. Indeed I have no problems to connect 5GHz wifi with my other devices (PC, phone, TV and so on).uname -r
, just to rule out whatever kernel bug (I think this was actually an issue with firmware and the mainline kernel, so never affected Raspbian anyway).