Infrequent Buffering



I have an issue with buffering. It doesn't seem regular, but when watching I'll occasionally get Buffering on the Xbox. No amount of waiting let's it get past this, only exiting and re-entering the video works

Connections are wired so speed not an issue and since it works for 20mins.or so fine before kicking in I don't think there is a transcoding issue either

Any help appreciated