So a few months ago my friends and I at college (I'm at home now) were trying to get this router to work with the universities strictness and it didn't work out so we just put it off to the side, and now that i'm back home, I don't remember what we changed the default ip to so I can access the settings so I can open up ports for my xbox 360.  The default is 192.168.0.1 and now I can't even ping it.  I've tried to do the hard reset and pushed the button and held it for 30 seconds or so and still nothing.  Any ideas?
Router is D-Link WBR-2310
Thanks!

Open a command prompt and type "ipconfig/all" when attached to the router. The Gateway IP address is the router's IP address.
 
Grumpy

So I did what you said and under default gateway I put in the ip into firefox and it didn't work.  However I was able to ping it...Argh!

Try IE.
 
Grumpy

Maybe try 192.168.1.1, this is usually what routers are set to as default.