Hello, My name is ***** ***** I'll be assisting you. I'm sorry you're having problems. In order to assist you, I need to ask for more info.
Which Roku Box do you have (1,2 or 3)?
How long have you owned it and WHEN did the issue first occur?
Is HBO Go, the only channel that has this issue? What about if you try a different channel?
Please review my reply and postback to proceed.