Connected to WiFi but no internet after upgrading to Monterey 12.7
Just after upgrading to the newest MacOS version there is no internet
MacBook Air (2018 – 2020)
Check whether or not other networks are available on the WiFi menu in the upper right. If there is a 2.4Ghz network by the same name, try connecting to it instead with the same password. 2.4 Ghz works best with WiFi routers on a different floor.