"Your port is not open or not reachable."

Hi,
I'm trying to play warcraft 3 with my friend and we just got a problem which can be solved through portforwading. And so I did it. But still, my PFPortChecker keeps telling me the messege "Your port is not open or not reachable.". So I don't know what I did wrong. I have only one router, I checked it with some program which can tell me if there is a router covering my router. I've opened the settings of my router, got into Virtual Servers, created new, chosen ports in range 6112-6119, applied to all (tcp and udp), confirmed. It looks like its working, but its not. I've got my firewall turned off and even so, I added rules there for those ports. I even turned off my antivirus. Still, its not working - just saying that its not open or not reachable. Any ideas? I'll appreciate any help. (and sorry for my grammar, I'm not from english speaking country, so there might be a lot of mistakes)