I tried to watch a movie rented from Amazon over Roku last night (not Prime) and it was unwatchable. It would get stuck on some scene for seconds to minutes, oc

I tried to watch a movie rented from Amazon over Roku last night (not Prime) and it was unwatchable. It would get stuck on some scene for seconds to minutes, occasionally letting loose a bit of audio. The movie was Inception. Maybe there's some irony in there.