I believe you put your computers IP Address ^^.
Hit start, run, cmd, then a dos window will open up, type in IPCONFIG, and it will show you what your IP Address is, then use that address in where it says you are supposed to put for you IP.
I think that is what you are supposed to do, its what I did.
Synch Error: I notice that when I am using my gamepad (PS2 Controller) sometimes when I use the analog sticks it gives me a Synch Error, actually pretty much if I move the analog stick I get a synch error.