Hi, I'm trying from the past three days to port forward the Modern Warfare 3 dedicated server ports but still no luck for me. Using Tenda D840R ADSL2+ Router with PTCL broadband. Strange thing is that the same port that I want to forward for Modern Warfare 3 dedicated server applied to utorrent and do UPnP and NAT-PMP from utorrent software, the port was opened at that time, I didn't know how but then I close the utorrent application after that immediately port closed. I did port forward on my router and on windows 7 firewall but the port not working. Please do help me to solve this matter. :crying: