I had the same problem with Macbook Pro 16, M1.
When I try to run the command: "networksetup -setairportnetwork en0 ",
I receiving the error:
"
Failed to join network .
Error: -3900 The operation couldn’t be completed. (com.apple.wifi.apple80211API.error error -3900.)%
"
I could not find anything on the internet that helped me
Omer_1321
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