whether it's COD or WFC i always lag and have 1 red bar even though my signal on the ps3 says 100%. I tried hooking it up to the router by ethernet. Didn't work. Could it be that the other 3 computers in my house could be interfering? because when no one's up yet i go online and my connection is perfect but when someone gets on their computer(dad, mom, or sister) it totally just fucks it up. idk what to do about it. is there ANYTHING i can do? nothing on the web or google seems to suggest this directly.