Fresh install raspberry pi 4 5ghz wifi not working Koutou December 10, 2019 at 10:58 PM Quote from chewitt For kicks .. force the wireless regulatory domain to the same as the router as "5GHz" is only one of 20+ radio properties, e.g. Code echo "options cfg80211 ieee80211_regdom=US" > /storage/.config/modprobe.d/cfg80211.conf and reboot to effect the change This worked for me. Just pay attention to the quote " not ”