xfinity not streaming on roku

I have a Roku TV.  I was in the middle of watching an Xfinity show..and it logged me out.

I have went thru the steps of trying to log in again thru xfinity.com/authorize and it says success, but the TV screen shows:

"Thank you for being an Xfinity Customer."  We had trouble signing you into the app.  Please try again later.

I've tried many times, made sure the cable box was still on, removed the streaming app and re-added it.

How can I fix this?  It was working.....until about 45 minutes ago when it kicked me off.