I have a WRT54G Ver. 2 router with the latest firmware. Just today my internet access stopped working on all computers. I had this problem once before (after a power outage), and I think I resolved it by unplugging everything several times and eventually it just started working again.
If I plug the cable from the modem directly into my PC, the internet works. If I plug the cable into the router, I have no internet access on any network PC. I read something about turning on MAC address cloning, but that didn't work. I shut everything down, booted the modem first, then the router, then all PCs. It still didn't work.
Any ideas on how to fix this? I've run out of things to try. Right now I have the modem directly connected to my PC, but as soon as I plug the cable into the router it doesn't work. I copied what was listed on the status page for the router:
Firmware Version: v4.21.1, Nov. 6, 2006 Current Time: Thu, 22 Nov 2007 22:26:38 MAC Address: 00:14:85:28:9E:CA Router Name: WRT54G Host Name: Domain Name: hsd1.ma.comcast.net. Login Type: Automatic Configuration - DHCP IP Address: 126.96.36.199 Subnet Mask: 255.255.254.0 Default Gateway: 188.8.131.52 DNS 1: 184.108.40.206 DNS 2: 220.127.116.11 DNS 3: MTU: 1500