So I live across from my sister and she has wifi which i'm using. We are about 40-50 feet apart (from her router to my laptop and ps3). Connection is great when we're using our computers but the PS3 ...

i disabled wps, still no difference. i don't see how the distance could be the issue, 50 feet from the monoprice router at my window, to my sister's room. we can see each other through the windows.