Totally stumped here. I had the WRT54G working on my ATT DSL setup, but now have switched to Comast. The wired Ethernet ports are working. I can surf from my desktop fine. But I cannot get wireless access working through the WRT54G. With DSL, all my home networking devices had a private IP address in the 192.168.1.x subnet and I could connect to everything and basically understood what was going on. With the Comcast setup, the modem is much less configurable for the internal/private network. It defaults to 192.168.100.1, and I can connect to it via it's web interface and ping it from the desktop. So, I set the WRT54G to 192.168.100.2. I can connect to it if I hard wire my laptop to it and give the laptop a static IP on the 192.168.100.x subnet. But I cannot ping the WRT54G from my desktop at that address. And when I run ipconfig on the desktop, I don't get an address in the 192.168.100.x subnet, I get an address in the 69.180.114.x subnet. Any attempt at connecting my laptop wirelessly ends up with a failed attempt to get an IP address. DHCP is enabled in the cable modem, not in the router. I'm so totally lost I don't know where to begin.