MW2 coop doesn't start, Nat type : strict

[lexmark]

Hello ladies and gents, I have a small problem. I tried to play mw2 coop with a friend but neither of us could host a game, we think its because our "Nat types" are set to "strict", and i'm really not sure how to open it.

I tried opening the upnp (network discovery?) on vista like mw2 asked me to but that didn't help.


What else can I try?

 

[Twist86]

Well honestly if your on PC find a empty server to play with each other its easier and wont lag as much.
Also I usually disable my firewall when I host a game as its always the issue. The other thing you can do is google Modern Warfare 2 Ports Online and forward those ports via router.

Without the information no one will know how to help you as each router is different. I don't do routers as I have enough trouble with mine I need no help from other peoples routers


*edit*
Nevermind forgot MW2 has that crappy server setup now. Use to MW1.

 

[CrayonMuncher]

What router do you have.
if you go into the router settings you should be able to change the nat type to open, usually pretty simple if you post the model of the router we should hopefully be able to find out how to change it