Cross-site authentication is new on Win (are you sure you can not solve this problem another way?) and AVG does not like it, had to add an exception for URL: https://authentication.win/sso?com=TheDonald&dest=https://patriots.win/
Keep up the good work btw.
I had to try entering the exception in several times before it would take it, but I got it back up and running again. How irritating!