Can't play tv shows using lan cable !

Because of my internet connection (wifi) which breaks down immediately when my atv and my mac are connected to the web at the same time, I always uploaded my tv show and movies, bought via itunes, with a lan cable. Everything worked perfectly fine until yesterday. I just got the ew Dexter HD Season 3 and tried to upload it on my atv. Unfortunately the internet connection from atv is bloked when using the Lan cable and the Tv shows won’t upload because of an account verification problem (connection to the itunes store is not possible because of the lan cable). Could anybody help me with this problem so I could finally watch dexter season 3 on my tv :slight_smile: ?

nobody ?