I have the same problem Just out of nowhere the (Error 33) pops up. And its that same one about the MATCHMAKING error. Anyways, I read at a post thatt ROB (from STAFF) wrote. If it didn't work, try ports that were in the 2 thousand range. I tried it, i'm not sure if I put them in correctly, as I put it under GAMING & APPLICATIONS --> PORT FORWARDING (there is also a PORT TRIGGERING) dont know the difference? I put them in somehow, clicked ENABLE...saved it. And now when I try to connect to my COD4 again it says that my PLAYSTATION is suspended....for the time being or something! Ummmmm what the?? :s So I put my settings back to how it was before and it still says that! But before that it was the Error 33 Matchmaking one. For the past...like....5 or 6 months it was working perfectly..no problems! I really think its the servers and not anything with my connection

ughhh help!!!