Question : Unable to access internet on Clients - SBS 2003 server 2 NICS

-I have SBS 2003 server, configured as follows:

:2 NICs on the server
         one connects  to the Internet through wireless modem
         the other to the internal switch.
All Client PCs connect to switch, to which the Server is also connected.

From the server I can access internet, but from the client machines i am not able to.
If I disable one of the Network Connections and enable it, i get access from the client PCs for a few seconds.
After this the Client PCs are not able to access Internet.

IPCONFIG on server:
Windows IP Configuration

   Host Name . . . . . . . . . . . . : ssplserver
   Primary Dns Suffix  . . . . . . . : Standss.local
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : Yes
   WINS Proxy Enabled. . . . . . . . : No
   DNS Suffix Search List. . . . . . : Standss.local
                                       unwired.com.fj
(outside nic)

Ethernet adapter Local Area Connection 2:

   Connection-specific DNS Suffix  . : unwired.com.fj
   Description . . . . . . . . . . . : Realtek RTL8139 Family PCI Fast Ethernet
NIC
   Physical Address. . . . . . . . . : 00-E0-4C-14-19-5E
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   IP Address. . . . . . . . . . . . : 202.151.29.97
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 202.151.29.1
   DHCP Server . . . . . . . . . . . : 202.151.16.148
   DNS Servers . . . . . . . . . . . : 192.168.16.2
   NetBIOS over Tcpip. . . . . . . . : Disabled
   Lease Obtained. . . . . . . . . . : Wednesday, 8 February 2006 9:47:47 a.m.
   Lease Expires . . . . . . . . . . : Thursday, 9 February 2006 9:47:47 a.m.

(internal nic)
Ethernet adapter Server Local Area Connection:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Broadcom NetXtreme Gigabit Ethernet
   Physical Address. . . . . . . . . : 00-11-85-B1-F8-78
   DHCP Enabled. . . . . . . . . . . : No
   IP Address. . . . . . . . . . . . : 192.168.16.2
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . :
   DNS Servers . . . . . . . . . . . : 192.168.16.2
   Primary WINS Server . . . . . . . : 192.168.16.2

I cannot see Internet from the client PC's, could there be a firewall configuration blocking off the clients?

I would appreciate any help provided.

Answer : Unable to access internet on Clients - SBS 2003 server 2 NICS

Is it possible for you to switch external interface to internal and voice versa and disable and configure RRAS again...

Since we are clear that problem is with NAT, maybe this might give us a hint...

Basically switch the network cables on the server's NIC. make sure you get the public IP, disable RRAS and configure again according to my previous post and check the mappings..

Also it looks like you are always trying from same client.....can you try from a different one...

And answer to your post: As far as the clients Network is set to DHCP , thats all there is.....you cannot ask the client to select the DHCP..If there are more than 1, you need to find it and see where the other one is coming from...

If you run dhcploc.exe from support tools, it will find rogue dhcp server on the same subnet..

Vinod.