As of last night cannot view MAX

HBO/MAX is part of my service, Tried to watch something on MAX last night and got the option to sign in with provider. I selected Xfinity, and got a numerical code to enter. No matter what I do I keep getting prompted to subscribe. I verified it's still on my services. Tried logging in with comcast email address and keep getting redirected to subscribe. Rest the cable box etc etc no luck, Called to an agent who just had me do the things I already did, and who promised me a callback from a tech person within an hour or so. Never happened. He was also very hard to understand because of a heavy accent. Worth noting when using my comcast email to try and log in it says 'welcome myname" so it knows who I am. But again stuck in the select your provider loop.  HBO itself works

I tried logging in on my PC and phone as well. I keep  getting an api message in tiny letter on top of a white screen - not a website.

{"response":"failure","code":5116,"status":401,"detail":"unauthorizedInvalid authentication response from Synacor","locale":"en-US","title":"Partner Authentication error","message":"Unable to complete partner authentication process. Please contact support."}

Best I could find is Synacore is a cloud based software company that facilitates communication between Max and Xfinity. With the hefty price hike I'm just about done. And I notice past few months when MAX worked it was no longer 4K, just HD