Windows Server 2008 DCHP not handing out IP addresses to clients

I just setup a 2008 64-bit Server and setup DHCP and Routing and Remote Access as I would in the past on Server 2000 and 2003 boxes.  Clients are not getting IP addresses automatically from the DHCP Server.  I tried turning off all virus and firewall software on both the Server and client XP SP2 workstations.  Even after trying a static IP on a workstation the Server could ping the workstation but the workstation could not ping the server.  I also tried disabling the Network Policy and Access Services (which I'm new to) and it's still not working.  I was able to get Terminal Server to work connecting via Remote Desktop on one of the workstations to the Servers external cable modem IP address (connected to a linksys router) but it was god awfully slow, something I've never seen before.

I have two NIC's in my server.  One for the LAN and one for the WAN.

NIC 1: (Internal Network)
IP:    192.168.10.2
Sub: 255.255.255.0
Gateway: BLANK
DNS:   192.168.10.2
WINS: 192.168.10.2

NIC 2: (External Side)
IP:    192.168.2.3
Sub: 255.255.255.0
Gateway: 192.168.2.1 (my linksys router - DHCP turned OFF on it)
DNS:   192.168.10.2
WINS: 192.168.10.2

Any help would be appreciated.

Regards,
Torrey