(adsbygoogle = window.adsbygoogle || []).push({}); I just tried to go on multiplayer and it keeps saying matchmaking server blabla.
I already restarted mw2 and stuff but my friends can play and i dont.
Yesterday everything worked well but i did prestige hack for the first time, does it have to do with that?
Help me please.
(sorry for my bad english)

UPnP not PnuP. It's plug n play

Yea i know that right know but how to turn it on?
I already looked on that thread about How to open your NAT.
i still dont get it.

that happened to me its because you never reset your proxy connection after doing the 10th hack dont worry it happens alot

So what to do than?

ok go to network connections and go to default connection and press it should be ok then

I just did that and it still doesnt work.
now everything on my ps3 is like the first day i bought it and it still doesnt work.
My internet connection is okay and i can see my online friends and stuff.
I can play the missions to....

same i dont have nat open either

but my nat is open.

Yes go on your network settings and disable proxy server if u used it for the hack. BTW UPNP is not neccesary to play online. it stands for unversal plug and play i believe it helps with matchmaking but if u did not need it before i dont see why u need it now