Intermittent Client Connection Problems

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Server Config: Windows 2003 Server, Exchange Server 2005

Client Config: Windows XP SR3. Outlook 2003 Professional

Client Connection to Exchange Server: RPC over HTTP

I have a client who is connected to our Exchange Server from outside our
LAN. The client computer is connected using "RPC over HTTP." We have many
users in the field using the same type of connection, including me, who are
not experiencing any connection problems.

For the client in question, sometimes it takes 3 minutes to kake the initial
connection to Exchange, even though the Windows Username/Password prompt
comes up indicating that the server has been reached. But after entering the
username and password, Outlook says "Trying to connect" in the bottom
right-hand status bar sometimes for minutes (up to 15). Once connected all
the data is synchronized. However, at interniitent points later in the day
Outlook will say "Connection lost ..." and "trying to connect . . ." and the
end result is that Outlook has to be exited and brought back up or the
Outlook session can stay in that state for a long time. Sometimes exiting
Outlook and bringing it back up clears the problem. Other times it does not.
This client had been clicking along just fine for over a year until a couple
of weeks ago, then this interniitent problem became persistent.

Does anyone know of any reason why an Outlook client would behave this way.
What things might I check on the client (or server) to figure out why they
are having the problem?

By the way, when Outlook was stuck "Trying to connect" to the Exchange
Server, I pinged the Exchange Server from the client and the pings were all
successful.

--
Dr. Doug Pruiett
Good News Jail & Prison Ministry
www.goodnewsjail.org
.



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