Linksys WRT54G V2 Will Not Change / Renew IP Address

I have a Linksys WRT54G v2 & latest OEM firmware. A few days ago I tried to release & renew my IP address to get a new one. It did not change, and just thought the Comcast modem was remembering the IP and just went about my normal web surfing. Today, nothing would connect to the internet. My WRT54Gs status was fine & had the same IP it had a few days ago.

I tried to release & renew the IP again, nothing changed. I called Comcast tech, and the automated thing reset the modem, still no internet, still same IP address. I released the IP & unplugged the router for about 5 mins, renewed & got the same IP again. I released again, and reset to factory defaults, same IP again. I tried connecting directly to the modem and see if I works, and it did!

I had another D-Link DI-624 Rev C v2.70 .. released the IP, and hooked it up .. everything works fine. So for S&Gs I released and hooked up the WRT54G to see if the IP changed at all, nope same IP! I would like to use the Linksys again, as the D-Link sometimes got funky under heavy load.