malikjohnson

I was at a friends house this past weekend and we had two xbox 360's, fully updated, two copies of halo 4 with infinity, two tvs and an ethernet cable. After setting up both consoles and starting up both games and changing our networks to system link, they tried to join my game, but it said not joinable, so i tried theirs, still not joinable. Both games are updated and both consoles. Also i dont know if this matters but my brother and i both have xbox live profiles and my friends both dont. PLEASE HELP