Just a thought, but there's enough suspicion about this guy - why even participate in a game he's in or hosting? Best case scenario, he has really bad connection problems. Worst case he's an exploiter.
i just played a game vs him actually to see if i can beat him and if he cheats.
About 20 mins no lag and no problems; in the end he said he lost and will rm (once it was obvious he wont win), that followed by a disconnect screen and game did not show up in stats. I have a screen shot and will post it if needed (of us chatting and before he disconnected, with the disc screen). No doubt he uses that on purpose, you should add him to alienwarrior in avoid list, get us some justice:).