thanks. just read the post and it's where i'm at right now. my issue is that my wifi ssid is hidden and i cannot connect to it unless it is not hidden.WIFI works fine for me in Big Sur, but I had to try a few different commands in Terminal (see post #6011) before I got one to work. In Big Sur I only get 2 of 3 strength bars on WIFI, but in Catalina I get all four.
post 6344 suggests something but im not sure how to go about using his bigfixes.