Outlook 2003 disconnects from Exchange 2010

bensonassociates
bensonassociates used Ask the Experts™
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We recently migrated to Exchange 2010, since doing that i have some users who when they open Outlook 2003 it is a disconnected state, the only way to fix this is to delete the profile and recreate.
This will also happen when a user attempts to open more that one shared calendar at a time.

Has anyone seen this before?
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Commented:
Make sure the encryption settings in Outlook 2003 match what you have setup with Exchange 2010 ... which is enabled by default.
Thanks for the reply, it ended up being a DNS issue that only affected clients with Outlook 2003.  As well we increased the RPC sessions because of the clients that had multiple shared calendars open.

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Commented:
After a lot of research and increasing the RPC connections it was still happening but checked DNS and it wasn't picked up the right DNS servers for Exchange.

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