is it possible to disable the ability to use 5Ghz for the wlan0 interface? I only want to use 2.4 Ghz Wifi Networks. So only 2.4Ghz Wifi is available and 5Ghz is disabled.
thanks in advance
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It is easy to select the frequencies you want to use. wpa_supplicant knows an option
freq_list. Just add this line to your
freq_list=2412 2417 2422 2427 2432 2437 2442 2447 2452 2457 2462 2467 2472
Then your WiFi will only connect to this frequencies. For some more information and other frequencies you can look at Raspberry pi 4 b 5Ghz wifi access point problem.