Is the same issue occurring for Xfinity? My Xfinity source just stopped working a few days ago and when I remove it and try to add it, it says wrong user/pass. However, when I use that user/pass on the Xfinity site, it works just fine.
@Seth_Steward No. this is a ATT TV Now thread, and this issue related to or by them killing the service and moving to a different product and also the login page changed, so they had to update the dvr. Has nothing to due with Xfinity.
Search the forms here, you will find many threads on xfinity and their stupid authentication issues many users have form time to time.