Well, it wouldn't hurt to read up on your problem a bit, try and figure it out yourself, you know... not have everyone hand the answers out on a silver platter the rest of your life.
Anywho, wrong forum too.
Is it in every lan game you try to lan on, or is it just certain games? Pretty much any xbox 360 game that's updated via xbox live, trying to play with another xbox 360 same game/earlier update, will not work. Try doing a cache clear on all your xbox 360's at the same time, then try to LAN maybe, it might work. I'm also putting money on it that you might have screwed up your networking maybe between your 360's. Getting banned has NOTHING to do with anything else except that you can't sign on xbox live EVER EVER AGAIN!
Cheers.
This post has been edited by The Prankster: Jun 5 2007, 05:31 AM