Help ! Expert in Networking Required

The story is like this... 

I'm just your daily gamer , and I love downloading pirates.. But I have 1 problem.. 

My Hardware Firewall is blocking the BitComet Listen Port..
I'm using Belkin F5D7634-4V2 Router
When I tried to port forward~ well.. there's a problem

The Problem here is , this !

It shows " No.1 WAN IP Address is invalid!"
So anyone who have the idea on how to solve this F*king problem and put me out of my misery.. please PLEASE help me...

You can leave a solution in the comment section , in my Facebook or my email , anuarkhairul83@yahoo.com
Peace!