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Recently uesrs have been complaining that they are not getting new emails. Upon investigation i realized that the last updated time on the inbox was from a while ago and users now have to manually send and receive and sometimes will need to restart outlook before the inbox will update.

Any ideas what would be causing this?

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Are these users using Outlook cached mode? When the inbox isn't updating does Outlook still say it is "Connected to Microsoft Exchange"? – Paul Cunningham Feb 2 '11 at 0:01
It does say "connected to Microsoft Exchange" It is in cached mode, In server mode it connects the same way. – cpgascho Feb 2 '11 at 18:55
I to am seeing the same issue. Any fixes found? I thought it was a bad NIC and now the problem is appearing in other areas. – user71708 Feb 22 '11 at 14:15
Question, Are these users trying to open more then one mailbox at a time? In other words, are they opening their mailbox as well as someone elses mailbox as well. Look for 9646 events in the application log of the Server… – Tom Feb 22 '11 at 14:22
Yes some of them do have multiple mailboxes open. They are using Outlook 2010 which allows multiple separate Exchange Mailboxes – cpgascho Feb 24 '11 at 15:55

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