Hello. I have searched for days to find a solution to this problem, but i just can't seem to find one. The Problem: Can't get internet to work on the LAN (I tried so many things, none worked). On the connected PCs I get Error: Host Not Accessable on Firefox. I also used Windows Live Messenger services to diagnose and it comes up with "Gateway is Offline". Physical Setup: Dynamic IP ISP > Linksys Router > Server 2003 > Switch or PCs. Done so far: - Connected 1st NIC to the Linksys Router IP 192.168.1.105 (Internet works on this Server computer) - Installed 2nd NIC aka "The LAN" and set to static IP 192.168.0.1, left Gateway and DNS empty - Installed Domain Controller - Installed Exchange 2003 - Configured DHCP (scope is 192.168.0.2 to 192.168.0.100, DNS to 192.168.0.1, 127.0.0.1) - Configured DNS (used wizard to create forward lookup zone, setup Fowarders to my ISP DNS (2 of them) - Configured RRAS NAT (used the Wizard, set LAN nic to private and Internet nic to Public without firewall) - PCs are set to DHCP Here is a few images of the settings I used just to give a better visual: >> http://www.systemweb.ca/temp/Diagra... I hope I wasn't too confusing, because im' confused and can't get route internet to all the PCs connected to this computer. Note: Some of the PCs have wireless NICs to test the routers internet connection on that perticular PC, and it works. All info and help is very much appreciated. Havoc.

Whew! Ok, first of all, what's the IP of your router? It's LAN IP should be the default gateway address assigned to all PC's. Second, you don't need two NIC's in your server. A single NIC configured correctly plugged into the same switch as all the clients is all you need. Third, if you remove the second NIC, your setup should look as follows: Dynamic IP ISP > Linksys Router > Switch > Server/Clients By putting your server between the router and switch you add complexity to your network. Plugging the Server into the switch simplifies the setup. The more complex your setup, the more trouble you'll have configuring it and the more things can go wrong with it. If you're able, remove the 2nd NIC from the server and plug it into the switch. Get the internet working on it and all clients and then perform your dcpromo to make it a DC. Example of IP addressing: Router: WAN Address: assigned by ISP LAN Address: 192.168.0.1 Subnet Mask: 255.255.255.0 Server: Address: 192.168.0.10 Subnet Mask: 255.255.255.0 Default Gateway: 192.168.0.1 DNS: 192.168.0.10 and/or 127.0.0.1 Client 1: Address: 192.168.0.20 SM: 255.255.255.0 DG: 192.168.0.1 DNS: 192.168.0.10 DNS on server forwarded (as you specified above).

Yeah your right, i think this double NAT setup is just too much. I was scared that if all the clients connected to the router might increase security risk. But your suggested setup makes a lot more sense heh. Thank you for the tip! Havoc