I have a Roku Ultra with this problem. I contacted Roku's Customer Service and they still do not know what's going on. Watching the forum I see that I am not alone. Only movies, with series of the 60s and live news tv no problem, only movies, I have good internet signal. I press play and no load, returns to play. It seems to be with licence problems or fabric configuration with this model with movies but the problem persists and Roku nothing said. Two cases in this forums with the same problem. I live in PR, I have excellent internet signal. Please, excuse my English.