I should have added that I have spoken to tech support via live chat and spoken to four staff. I told them the list of Error codes and went through whats been happening with the Xbox. After this I was told to restart my router which I did. The problem seemed to disappear for approx. four minutes as just after one foo fighters video it happened ERROR 4004 this App must shut down Muzu tv. So after this I tried vevo and yes same here it worked for approx four minutes too although I could here sound but only watch a black scrren. I have a ps3 on the same network and it does not have any problems at all. It can do all Xbox cant. Pity I don't know what the error 4004 is just hope they update Xbox to fix it.