Cannot Ping Router

I just installed a first instance of 2003 server at a
client site and this machine cannot ping the DSL router
(times out) and get to the internet. There is no problem
pinging internal Windows machines.

If I unplug the cable from the back of the server and
connect it to an XP laptop, I can ping the router easily.
There is thus not a physical problem.

I know that 2003 has a completely new TCP/IP stack and may
be incompatible with older equipment.

Any ideas? This is killing us.

--
Larry Menzin
American Techsystems Corp.

you may want to use pathping to find out where it goes or post the routing
table here.

--
For more and other information, go to http://www.ChicagoTech.net

Don't send e-mail or reply to me except you need consulting services.
Posting on MS newsgroup will benefit all readers and you may get more help.

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN, Anti-Virus, Tips & Troubleshooting on
http://www.ChicagoTech.net
Networking Solutions, http://www.chicagotech.net/networksolutions.htm
VPN Solutions, http://www.chicagotech.net/vpnsolutions.htm
VPN Process and Error Analysis, http://www.chicagotech.net/VPN%20process.htm
VPN Troubleshooting, http://www.chicagotech.net/vpn.htm
This posting is provided "AS IS" with no warranties.
"Larry Menzin" <(E-Mail Removed)> wrote in message
news:2FE44082-7DE3-4E0D-97A1-(E-Mail Removed)...
>I just installed a first instance of 2003 server at a
> client site and this machine cannot ping the DSL router
> (times out) and get to the internet. There is no problem
> pinging internal Windows machines.
>
> If I unplug the cable from the back of the server and
> connect it to an XP laptop, I can ping the router easily.
> There is thus not a physical problem.
>
> I know that 2003 has a completely new TCP/IP stack and may
> be incompatible with older equipment.
>
> Any ideas? This is killing us.
>
> --
> Larry Menzin
> American Techsystems Corp.

Larry Menzin wrote:
> I just installed a first instance of 2003 server at a
> client site and this machine cannot ping the DSL router
> (times out)

You're trying the LAN IP of the router, right?

> and get to the internet. There is no problem
> pinging internal Windows machines.
>
> If I unplug the cable from the back of the server and
> connect it to an XP laptop, I can ping the router easily.
> There is thus not a physical problem.
>
> I know that 2003 has a completely new TCP/IP stack and may
> be incompatible with older equipment.

No. What's your config - two NICs? Or is the router plugged into a
hub/switch that the computers & server all connect to? I recommend the
latter - let the router do NAT. Have your server do DHCP.
>
> Any ideas? This is killing us.