GamerGeeky Posted May 26 Share Posted May 26 If you can't get your nat open using UPnP or port forwarding and it still is moderate or strict i found out my windows firewall didn't have mw3 ports added so i added them and now with UPnP enabled its open. Just copy and paste this in powershell as admin and check the advanced firewall settings to see if MW3 is listed in both inbound and outbound, and you are good to go. Hope it helps some! $tcpPorts = '3074', '3075', '27015-27030', '27036-27037' New-NetFirewallRule -DisplayName "MW3" -Direction Inbound -Protocol TCP -LocalPort $tcpPorts -Action Allow New-NetFirewallRule -DisplayName "MW3" -Direction Outbound -Protocol TCP -LocalPort $tcpPorts -Action Allow $udpPorts = '3074', '4380', '27000-27036' New-NetFirewallRule -DisplayName "MW3" -Direction Inbound -Protocol UDP -LocalPort $tcpPorts -Action Allow New-NetFirewallRule -DisplayName "MW3" -Direction Outbound -Protocol UDP -LocalPort $tcpPorts -Action Allow TrayDay 1 Link to comment Share on other sites More sharing options...
TrayDay Posted May 26 Share Posted May 26 This does work for those trying to accomplish OPEN NAT on PC. Here's a visual representation GamerGeeky 1 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now