After shutting down old Exchange 5.5 Server Outlook connections to new Exchange are VERY SLOW

Greetings!

For some number of months the Exchange services on my old Exchange 5.5 server have been shut down. But when I shut down the operating system entirely the connections from a bunch of my Outlook clients to the new Exchange Server are VERY SLOW.

So, there must be some resolution process being attempted that finally times out.

What do I need to do to avoid this client slowdown? Should Cache Mode have an effect in this instance?

Thank you.

---------------- GeorgeS, aka "SQLPadawan"