Hbomax

I’m having the same issue.  My primary 4K dvr won’t play movies on hbomax but works on my xid’s in bedroom. 
I’m a technician and I’m leaning towards it being a firmware issue with 4K dvr. 

I am having the same problem as of last night. I do not have 4K DVR.  Also, prior to this happening, it made me sign in all over again. 

I fixed mine. I went into my account in the HBO MAX APP, signed out, and signed back in. It is working now.

Hello, @user_09693f! Thanks for reaching out to us through our Communities forum for support on your app! I love HBO MAX and think it’s well worth the cost just for the new movies that you can watch before they are in theaters. I want you to be able to enjoy this app as well and I am happy to help. I see others have had success in signing out and back in through the app. Have you tried this step as well?

This happened to me - Try opening hbo/max app, choose movie, but do not click on play -

I just waited and the movie started after a few seconds.
  

I am having the same issue. A few days ago I could watch HBOMAX content on my TV no problem but now when I select play it takes me back to the HBOMAX home page. When I try and do the same thing on my computer the content launch just fine.

What do I have to do to fix this?

I just log out from app and logged back in. It worked.  The question I have is why does xfinity tech support does not give this solution. I spent 2hra with a guy doing all of this diagnosis and resets… a waste of both of our time, and the solution was on this forum.