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Exchange Server 2007 losing connection to the Global Catalog server

Hi we have just had Exchange 2007 installed on a Windows 2003 R2 server. We have a single domain with 2 domain controllers of which 1 is the global catalog server. Now once a day the Exchange server 2007 stops working stating that it cannot find a global catalog server. On rebooting the main DC which is the catalog server Exchange 2007 works fine. Any help would be appreciated.

sdschaefer

Exchange 2007 should generate a event id 2080 in the application log (on the exchange server) every 15 minutes. Please post the details of that event.
You didn't state it, but I'm assuming we are talking about 3 servers, a stand alone 2003 server running Exchange and then 2 other 2003 servers that are the DC's (one being a GC). Is that correct?

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kevala

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alfatec

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Cheers Guys for the rapid responses, I will try these things as soon as possible.

alfatec

ASKER

Hi, OK I increased the logging and the only warnings that I have been getting relating to ADAcess are as follows:
Process STORE.EXE (PID=3056). Object CN=SMTP,CN=809,CN=Address-Templates,CN=Addressing,CN=Sale Grammar,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=sale,DC=com was not found on the Domain Controller sale-fs2.sale.com. This may indicate a replication or permission issue.

I have done a FRSDiag on the 2 servers and completed full replication without any problems, so I don't
know why this is there.

In the AD Config events all seem fine, e.g.
Domain Controllers: sale-fs1.sale.com
sale-fs2.sale.com

Global Catalogs: sale-fs1.sale.com
sale-fs2.sale.com

Configuration Domain Controller: sale-fs2.sale.com.
Topology Version 58, Topology provider: DSAccessTopologyProvider.

I am not sure if things have settled after I added another Global Catalog server.