Our premium channels (HBO SHO) stopped…saying not subscribed on main tv set only. We are subscribed.

Hi folks we have 2 TV sets, main, and bedroom upstairs.

The main set, all premium channels stopped working today.  Local channels work.  Bill is up to date, I refreshed main box,  this did not work.  Channels say not subscribed. We are.

The bedroom set ALL channels work.  It’s only the down stairs main box.

Can anyone help?  We don’t have smart phones, we are old people.

Thanks