Problem port forwarding

I have an ASUS RT-N56U Dual Band router (with latest firmware) and am trying to get it to port forward 200 to my laptop but when i check to see if it worked the forwarding doesnt go through. please help.

I have the same problem with every router i have ever used, it seems it never really works. I run a GTR2 practice server and a TS server on my pc. The only way I managed to get it to work was to put my PC in the DMZ (Demiltitarised Zone) of the router, but this does give you reduced security (as far as i know) on the network as your network could then be hacked through your computer, but it does allow all connections to and from your pc, so you must make sure your windows firewall is on and is correctly setup

allow the program through the firewall or even turn it off and tripple check that you are forwarding to the correct internal ip address.