My Mac's Country Code is Wrong [WiFi Issues] | MacRumors ...
https://forums.macrumors.com/threads/my-macs-country-code-is-wrong...20.10.2021 · Check that the country code on the AP is configured correctly. Open Network Preferences, Create new location, Apply settings, Turn off wifi, Turn on wifi, Delete the new location, Apply settings, Turn off wifi, Turn on wifi, Close Network Preferences. Open System Information.app, go to Wi-Fi and press cmd+r to reload.