well, first off i tried it in many servers and they all were lagging with high ping. Also i was playing in a server and then as soon as my brother signed off xbox live my ping went down. So I know that it is definitely his wireless gaming adapter that is causing my lag. One more thing. Me and my bro used to always play on the saem network fine. Before he was connected via ethernet cable and i was connecting via wireless adapter. He would play halo 2 and i would play cs at the same time and i would still have low ping. Now though, since he switched from ehternet to wireless I lag. Before i had wireless and he had direct connetc to router through ethernet cable. Now we are both using wireless and i lag. What is the difference now that makes it lag? Before we would both be on at the same time but all of the sudden since he switched to wireless liek me i lag. I hope i made it a little clearer. Any opinions.