Question from FlareBladeLord

How do I change NAT type from "Strict" to moderate, or open?

The game works on campaign and Special Ops, but whenever I try to do Special Ops with a friend, or try to go online, I am unable to play with anobody at all, cuz my NAT-type is "Strict" all the time.

And please, don't give me replies like "Turn the router on and off", I want an answer that will be able to last for as long as I play COD:MW2.

FlareBladeLord provided additional details:

Also, I got a Telsey router. Pretty much unheard of, I think. And those four links on aren't helping me the least.

Top Voted Answer

Feenix_x answered:

You have to change your universal plug and play (UPnP) options Infinity ward has a page dedicated to it on their site
that includes links to the major router manufacturers where you can get instructions on changing the options on your specific router.
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KaRath_ answered:

Open UDP port 28960 and TCP ports 27030 and 27031

I think
1 0

wackedupwacko answered:

You'll need to portforward, go to and look in the routers for your specific router, then look for the modern warfare 2 game and follow their guide
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wackedupwacko answered:

You will need to do the above :D but if you cant find your router, you just need to change your Universal Plug and Play UPnP to enabled and your NAT enabled
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