I asked this question in another thread but I guess that thread is too big so I need to be a bit specific. I did search the forum and tried all the comments (changing my router to wireless N or G and etc.) but nothing seems to work Here are my problems.. I have appletv connects wirelessly to my iMac external harddisk (USB 2.0 750GB).. My appletv is hacked with patchstick and got all the ATVfiles and NitoTv.. So far I see that most or all of the people in this topic use thier itunes to play the movies but I didn't know until I read this forum that I can tell iTunes to detect my avi movies using some programmes. Anyway, at the meantime I use Atvfiles to play my movies with perien installed in my appletv. When I stream my movies to my Appletv it never goes smoothly, always freeze once in a while, dont know whether it is a router problem or my iMac problem, or Appletv problem.... I have seen some people have the same problems but no solution !!! I will try to change my router to wireless N but I think I have dont that and nothing has changed. Everything is connected through wireless router my imac and my appletv. Please help me on this problem, I just cannot take it when I watch movie and then it stops for 30 second every 15 or 20 mins !!!