Cant Connect

I Got a Linux Running Mint and for some reason people cant connect. i have a router Running DD-wrt Andi have my Box set to a static ip and that ip set to DMZ, Can anyone tell me why it gives me my WAN Ip when i go to check my Ports and How i can fix this?

Where are you checking the ports?

Need moar detailz

I have used many different programs and websites on both my Windows PC and my Linux Box? Its giving me my wan IP not the Static IP i put to the machine

your checking it from the internet?

The static IP you set to your PC never goes to the internet, it is on your internal LAN only and your IP changes to your external one as soon as you go past your router.