I'm experiencing the same issue. I had been using HBO Max without any issues for the last two months, then three days ago it just stopped working. Here's what I experience: 1) Try to log on to HBO Max through the "SIGN IN THROUGH TV OR MOBILE PROVIDER" button. 2) Select xfinity from the listed providers. 3) Log on to my xfinity account using the primary account xfinity user id and password. 4) Get sent to the xfinity website where it's telling me to add HBO Max to my account. But I already do subscribe to HBO (verified my bill says HBO Max). Even if I click the Add button on the xfinity website just to see what happens, it tries to pull up my account details and then errors out telling me there's an issue and I'll have to call xfinity. Nothing I do allows me to access HBO Max like I could just a few days ago.
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