T Mobile, Tvision and T Mobile Internet

[Mikeyk954]

Recently I switched from Comcast Xfinity to all the T Mobile things above. I have had nothing but headaches since I signed up for it nearly two weeks ago. I still can't get the TV's in sync with the internet, the picture freezes and a frequently get an error message. I have spent countless hours on the phone trying to get it straightened out. No help from Customer Service - "it must be your TV, I think you should call the manufacturer."
Does anyone know anything about the TVision product because T Mobile has no answers.

Thanks,
Michael