So, I been playing d2 again now for a few weeks. I just got my first temp ban

I checked out the guides on how to fix it, basically it says I have to change my IP.
But the methods given are for Linksys and are NOT similar to my Belkin lol.
So can someone please tell me how, or give me a referral, on how to change my IP using a Belkin N Wirelss Router. My computer is connected directly to the router via Ethernet cable, not through the wireless signals.
Thanks whether you can or not.