Paramount Plus access

I am paying for Paramount Plus on my xfinity bill. Have been for months. I have watched Par+ previously on my home TV. But now, for a min of 2 weeks, I haven't been able to get access on the TV.

I just now changed my password, and CAN sign in to watch on the internet using my laptop.

I went back yo my TV, signed in with my new PW and it diesnt recognize me --- "unable to verify account" -- Why? I want to watch Par+ on my TV, accessing with Voice remote..