Same issue here, NvanPelt. I talked to a Comcast support person yesterday who "refreshed" my account settings somehow and HBO Go did work briefly / as expected. Today it is once again re-directing to https://www.xfinity.com/learn/digital-cable-tv/premium-channels/hbo?lang=en&ui_style=dark
I've tried unplugging router/modem, different web browsers, etc. Made no difference.
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