2 ISPs, can only VPN thru one ISP but not the other

We are running Windows 2003 server. We have 2 ISPs that have seperate
modems (routers) with Linksys routers behind them. The each have static WAN
IP's. Both routers are connected to the same switch on the LAN side. Both
routers respond to ping from the outside & inside. The server has 1 NIC and
accepts a VPN from only ISP #1 but I cannot connect thru ISP #2.

Both modems are just passing al traffic. The routers are both forwarding
ports to the server. Both routers are setup the same, except that each is
connected to a different ISP. The ISP that we cannot connect on is SBC
(AT&T). I have other sites that I VPN into thru SBC without any issues. I
have actually duplicated the settings from another location for the modem &
router & I cannot connect.

The Group Policy is only to permit by user. It is listed 1st in the
policies. I have tried some static routimg but that ended up blocking my
working VPN.

Standard (HTTP) inbound & outbound traffic passes thru each router with out
any problem. I am settng up an Exchange server and need the traffic to pass
thru the SBC ISP. I also cannot RDP to the server thru SBC, even though the
port forwarding is directed to the server IP. DHCP server services are
running on the Server.

I have changed out both the SBS Netopia modem (router) and the Lynksys
router to a Netgear Router with the same results. It has to be in the
server routing.

Thank you,

Rodney

You will only be able to remotely connect to the server through the
modem/router which is the default gateway for the server in question.

If you try to connect through the other one, the reply will come back
via the default router. Since this has a different IP address from the one
the request was sent to, the connection will fail.

"Rod" <(E-Mail Removed)> wrote in message
news:%(E-Mail Removed)...
> We are running Windows 2003 server. We have 2 ISPs that have seperate
> modems (routers) with Linksys routers behind them. The each have static
> WAN IP's. Both routers are connected to the same switch on the LAN side.
> Both routers respond to ping from the outside & inside. The server has 1
> NIC and accepts a VPN from only ISP #1 but I cannot connect thru ISP #2.
>
> Both modems are just passing al traffic. The routers are both forwarding
> ports to the server. Both routers are setup the same, except that each is
> connected to a different ISP. The ISP that we cannot connect on is SBC
> (AT&T). I have other sites that I VPN into thru SBC without any issues.
> I have actually duplicated the settings from another location for the
> modem & router & I cannot connect.
>
> The Group Policy is only to permit by user. It is listed 1st in the
> policies. I have tried some static routimg but that ended up blocking my
> working VPN.
>
> Standard (HTTP) inbound & outbound traffic passes thru each router with
> out any problem. I am settng up an Exchange server and need the traffic
> to pass thru the SBC ISP. I also cannot RDP to the server thru SBC, even
> though the port forwarding is directed to the server IP. DHCP server
> services are running on the Server.
>
> I have changed out both the SBS Netopia modem (router) and the Lynksys
> router to a Netgear Router with the same results. It has to be in the
> server routing.
>
> Thank you,
>
> Rodney
>
>
>