Has this issue been resolved somehow? I have tried to sideload chrome web browser when connected, but it doesn't redirect me and says the dns can't be reached(can't recall exactly the message but I'm at work atm). Any suggestions? I'm thinking maybe if I log in before hand on my phone's hotspot and login to xfinity and then switch networks but I doubt it will work.
Only way that would work is by copying theac address of the TV onto another device to get it logged in and then you can do that..... But question serves as to why are you doing this?