Unable to correct wifi password
I mistyped the password for my wifi network. In gnome-initial-setup all that happened was that it attempted over and over to connect. There was no error message that the password was wrong, and there is no way to fix the password. Once it is typed, it is locked in and unchangeable until you have managed to get into the system when the gnome control centre allows you to correct it. In my case, I have multiple SSIDs and was able to use another successfully. Otherwise, I would have been stuck with a new install that I could not complete setup and use the system.