Anilrgowda

Windows 2003 SBS server with two NIC's setup, using 'Routing and remote access'
The server sets up automatically a destination of 0.0.0.0 and points to 82.40.226.52 with a Metric of 1000 setup automatically and prevents access to internet.
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 82.40.226.49 82.40.226.52 1
0.0.0.0 0.0.0.0 82.40.226.52 82.40.226.52 1000

There is a persistant route setup for:
Destination Netmask Gateway Metric
192.168.0.0 255.255.255.0 192.168.0.1 10

When first setup the gateway defaults to 82.40.226.49, then after a while it defaults to 82.40.226.52

There is only one default gateway configured which is 82.40.226.49, so why does the default change to the IP address of the external NIC which is 82.40.226.52? The ISP I use provides a fixed IP address via a DHCP server.

I have a schedule task which releases/renew's the IP address of the Internet connection.

Anilrgowda

YIKES!!! I'm really not at all sure what your true question was... something about why the Gateway defaults to 82.40.226.52. I'd assume it's getting that instruction from the ISP's DHCP server. But honestly your configuration is a mess!

First, why are you using OPEN VPN when SBS has a VPN included and is configured by running a simple wizard?
I'd recommend uninstalling it.

Then... remove ALL external DNS Server IPs from both NIC configurations. You should ONLY have the SBS's IP listed as a DNS Server... which apparently is 192.168.0.1

Add 192.168.0.1 as the WINS server on your internal NIC.

Disable NETBIOS over TCP/IP on your EXTERNAL NIC.

Ideally you should put a router between the external NIC and your Internet Connection... something simple like a D-Link 604 works well... as long as it provides VPN Passthrough to allow the SBS to get VPN connections properly.

What's the purpose of the persistent route? doesn't make sense to me

Finally Run the Configure Email and Internet Connection Wizard (CEICW -- linked as "Connect to the Internet on the To-Do list in the Server Management Console)

A visual how-to for that is here: The CEICW ... and a full networking overview for SBS is at How to configure Internet access in Windows Small Business Server 2003 with an example of a reasonable TWO NIC config here: Two Nics, a static IP address, ISA, router

Sorry if all of that is too blunt... but you're wasting a lot of resource with this configuration.