I am running Windows XP Pro SP2 on my laptop with a Sony PCWA-C300S wireless card. I have a Linksys WRT54G v3 wireless router. I am connecting wirelessly. It is acting as the DHCP server, I have turned off WEP, I have turned off MAC filtering. I am getting an address via DHCP from the router. I can browse the other network computers and ping the gateway, I can ping myself. I cannot ping outside the network, or access the internet. I also have tried setting the DNS statically while receiving the IP via DHCP, and that didn't do any better.
When I use a static IP, I can browse the net just fine. When wired to the router, I am able to browse the net just fine.
I have tried WinsockxpFix. That didn't help.