You must know your user and pass but if you never changed it then user is admin and pass is blank
1. type in 192.168.0.1 and type your user and pass
2. Click advanced
3. Click DMZ on the side
4. Type in your LAN IP it should say 192.168.0.___
5. Restart your router
That makes your computer bypass the router and go straight to the internet not portforwarding is needed Tested and it works so go ahead if you dont wanna forward ports