Connect Team Laptop to Home Wireless Problem

[3p1c w1n]

My home network has a MAC address filter list for the wireless devices. I want to add the MAC addresses of the team laptop and the netbook to the list.

I have a linksys wrt54g and for some reason it won't let me connect directly to the router from my PC, which is connected by tether to the router. I open up command prompt and type 'ipconfig /all' and find that my default gateway is 192.168.1.1. when I attempt to navigate to that address through my web browser i get a message saying that "the webpage is not available".

Any ideas on how to connect to my router to change my Mac filter? I have internet connectivity and am able to browse the internet and everything on my PC just not able to connect directly to the router. Any ideas?

I need Internet access to install and update properly.