Now this is odd. If I setup a guest network, new password etc., using the same connection parameters as the primary -- I can connect.
It is as though the primary network has been crippled. Looking at the stats I can say that something happened but I am not sure what. On the primary the WPA Pre-Shared Key had been changed to a very long address. It isn't anything I would have set and I am wondering how it got set to that address.
I've been having some synch issues and Comcast has sent several refresh signals, could that have done something?