(adsbygoogle = window.adsbygoogle || []).push({}); I had a twitter request to help someone on their NAT so I figured this is a good chance to help others! Keep in mind you'll need to select the game(s) you want to open the ports for. This method works for both PS3 & Xbox 360! Below I've included a list of the MW3 ports




PS3 & Xbox Ports to forward:
TCP: 3074, 27014-27050

UDP: 3074, 27000-27030

Misc Tips:

Finding the IP of your router/modem on Windows:
1) Start --> Run --> CMD
2) In CMD command prompt type "ipconfig/all" (without quotes) and press enter
3) A bunch of mumbo jumbo comes up, but you're looking for the numbers next to Default Gateway. It should read something like this 192.168.1.1
4) open your internet browser and type in the default gateway IP

Anyone else need help with their NAT issues? just let me know. reply here or PM. I'm happy to help