Client can't connect to internet

Hello,
I recently installed a server running 2003 in my firehouse. I am running active directory, dns dhcp, vpn, all from the server. The issue I have is the client computers can't connect to the internet. The server connects fine and the clients connect to the server ok as well. I have a Linksys wireless router with dhcp turned off and one laptop and one desktop on the network. The server has 3 nic connections. Any help would be greatly appreciated.