"No writeable domain controllers found in Active Directory site" error when you run the ExBPA tool in an Exchange Server 2010 organization

Article ID: 2633043 - View products that this article applies to.
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SYMPTOMS

Consider the following scenario:
  • You have multiple Active Directory sites in a Microsoft Exchange Server 2010 organization.
  • Some Active Directory sites without Exchange servers have only read-only domain controllers (RODCs).
  • You run the Microsoft Exchange Best Practices Analyzer (ExBPA) tool in the organization.
In this scenario, you receive the following error message from the ExBPA tool for all the RODC sites that do not have Exchange servers:
There were no writeable domain controllers found in Active Directory site '{site name}'. At least one writeable domain controller is required for Exchange Server to function properly.

Note You do not expect to receive an error message from the ExBPA tool in this situation.

CAUSE

This issue occurs because the ExBPA tool uses an incorrect query to verify the writable domain controllers in the organization.

RESOLUTION

To resolve this issue, install the following update rollup:
2685289 Description of Update Rollup 3 for Exchange Server 2010 Service Pack 2

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

MORE INFORMATION

For more information about Microsoft Exchange Analyzer tools, go to the following Microsoft website:
General information about Microsoft Exchange Analyzer tools

Properties

Article ID: 2633043 - Last Review: July 6, 2012 - Revision: 2.0
APPLIES TO
  • Microsoft Exchange Server 2010 Service Pack 2, when used with:
    • Microsoft Exchange Server 2010 Enterprise
    • Microsoft Exchange Server 2010 Standard
Keywords: 
kbqfe kbfix kbexpertiseinter kbsurveynew KB2633043

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