No WIFI after reinstalling OS
Hello everyone!
I have a mid 2012 MacBook that I wanted to format and re-install the operating system. I first erased the disk and reinstalled the Catalina OS. Everything was perfect but in a few days the WiFi stopped working and I couldn't connect to any network.
To fix it I erased the disk again and installed the original Mountain Lion OS. Now I try to connect to WiFi and I don't even get the option in the Network of System Preferences.
Does anyone have a solution?
Thank you so much for the help.