Topic Last Modified: 2009-04-03
This topic provides information about how to troubleshoot event ID 9186.
After you move a computer that is running Microsoft Exchange Server 2007 from one organizational unit (OU) to another OU, the following event is logged in the Application log:
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Event Type: Warning |
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Event Source: MSExchangeSA |
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Event Category: General |
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Event ID: 9186 |
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Description: Microsoft Exchange System Attendant has detected that the local computer is not a member of group '/dc=<COM>/dc=<domain>/ou=Microsoft Exchange Security Groups/cn=Exchange Servers'. System Attendant is going to add the local computer into the group. |
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The current members of the group are CN=Exchange 12 Domain Servers,CN=Microsoft Exchange System Objects,DC=<domain>,DC=<COM>; CN=<servername>,OU=Servers,DC=<domain>,DC=<COM>;. For more information, click http://www.microsoft.com/contentredirect.asp. |
Event ID 9186 occurs even though the Exchange 2007 server is a member of the Exchange Domain Servers group.
This issue occurs because the distinguished name of the Exchange server changes when you move the server from one OU to another OU. When the Exchange System Attendant service starts, it caches the distinguished name of the local server. The new distinguished name differs from the distinguished name in the cache. Therefore, the Exchange System Attendant service logs event ID 9186 in the Application log on the Exchange server.
To resolve this issue, do one of the following:
- If your Exchange server is listed in the Exchange Servers
security group, restart the Exchange System Attendant service to
update the cached value.
- If your Exchange server is not listed in the Exchange
Servers security group, remove the Exchange server account from the
Exchange Servers group, add the Exchange server account to the
Exchange Servers group, and then restart the Exchange System
Attendant service to update the cached value.
Procedure
To determine whether the
Exchange server is listed in the Exchange Servers security
group
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In Active Directory Users and Computers, expand the <DomainName> container, and then click Microsoft Exchange Security Groups.
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In the right pane, right-click Exchange Servers, and then click Properties.
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On the Members tab, verify that the Exchange server is listed in the Members list.
To restart the Exchange System
Attendant service
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Click Start, point to Administrative Tools, and then click Services.
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In the Name column, click Microsoft Exchange System Attendant.
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Click Restart the service.
To remove and then add the
Exchange server in the Exchange Servers group
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In Active Directory Users and Computers, expand the <DomainName> container, and then click Computers.
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In the right pane, right-click the Exchange server entry, and then click Properties.
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In the Member of list on the Member Of tab, click Exchange Servers, and then click Remove.
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In the Remove user from group dialog box, click Yes.
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Click Apply, and then click Add.
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In the Enter the object names to select box, type Exchange Servers, and then click Check Names.
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Click OK two times.