Flash Player errors - online streaming not authenticating
I have recently started having problems streaming videos online using a U-verse TV account. It worked fine for a while and now it is all screwed up. I made no changes that I am aware of that would have changed any settings.-I am using a Windows 10 v1803 desktop PC. The PC is fairly new - about a year old. I get the same type of error on 3 browsers - Firefox v 66.0.3, MS Edge v 42, and Chrome v 74 - all the latest versions I think. I think I am using Adobe Flash Player 32 NPAPI.
I get error messages like this one -

I have cleared cache and cookies and looked at my settings, but I cannot figure it out. Anybody know if this can be fixed?
