I recently upgraded my Outlook 2002 client to 2003 running exchange 5.5.

The first few weeks were fine then last week I began getting a message that my Outlook client was having problems connecting to exchange 5.5.
I ran the exchange 5.5 utilities as well as connecting to my same mailbox using another Outlook 2002 client. Everything ran fine.
Since I am running Outlook 2003 in "cache" mode. I am getting e-mails periodically every time it can connect for a few minutes. Then just as quickly I will loose the connection and reconnect in 5 minutes or so.

Any trouble shooting suggestions? Nothing on google search as of yet on this.