Connect to Exchange Server is unavailable after incoming connectio

[Guest]

I have Outlook 2003 installed on a Windows 2000 professional server talking
to Microsoft Exchange Server.

Everything works fine until I add another network connection (like incoming
connections for providing a connection between a pda and the computer). As
soon as the connection is added I loose connection to the exchange server.
Network connectivity to the exchange server is fine after adding the
connection. nslookup works, ping works, using the ip address of the server in
outlook also doesn't help.

The strange thing is that sometimes it works fine then suddenly starts
acting strange again.

The error message when attempting to re-establish connection is:
"Outlook could not log on. Check to make sure you are connected to the
network and are using the proper server and mailbox name. The connection to
the Microsoft Exchange Server is unavailable. Outlook must be online or
connected to complete this action."

Any ideas what is going on?

 

[Guest]

I found a little more information on this problem.
It seems that it is seeing that the new connection is disabled and refused
to connect to the lan. If I enable this connection (like connecting from the
PDA to the desktop) then Outlook starts working.

Is there a way to force it to assume the network is connected or tell it
which lan connection to use?