Hi a couple of months ago i went from ps3 to XBOX 360 due to the PS netowrk hack. At first my connection was fine but now i cant seem to stay connected for more than 15 minutes and even less when trying to talk with friends in my party. I was wondering is there anything i can do to improve it. I have looked at repeaters and so on but dont understand what to do with them? Also there are 3 other xbox 360's in the house, and about 4 laptops all conected to one wirless router, does this slow it down? help would be really appreciated.