To make this short, my friend and I used to be able to connect without issue until a few weeks ago and now we can barely be in the same xbox live party without lagging the whole party offline. My brother on the other hand can connect to him just fine and we are in the same house on the same router. We are both using wireless connections and are about the same distance from our router. I've tried getting more bandwidth and a stronger router but nothing has helped us so far. Any suggestions?