are you using wireless internet? or are you connected via wire straight to your computer (ethernet cable) .. this is what you do just go to cmd type ipconfig then enter, you will see your default gateway address enter that address into your browser then you will be at your modem settings page, then log in (login info should be on your router box) then find port forwarding, when you find it enter your IPv4 address (you will find that at cmd too) and enter your port you want to forward (I used bitcomet so I went to options and found the port number I was using) then tick the box and save changes, thats it if you have any other issues let me know the exact problem I will be glad to try and help