Hope this may help but make NAT available as well as UpNP on the PS3 and the router. I've never had to use specialty DNS servers, but I set up primary DNS and set up my secondary DNS on the PS3 and on the router. If you don't absolutely need them, at least temporarily disable media servers while playing Black Ops. Try going hard wired CAT6 cable if you can, full Gig if your router supports it. If so run 1000TBASE-FULLDUPLEX on PS3 network speed. If not ask for a new router for Christmas. About $99 - $160 for a decent entry level 10/100/1000 router. (Full gigabit) Even if you can't go wired, most of those settings are still applicable and should enhance your all around wireless reliability, not just with gaming, or the PS3.