The Enable-CSTopology command does not run successfully when you publish a topology by using the Topology Builder tool for Lync Server 2010

Symptoms

The Enable-CSTopology command does not run successfully when you publish a topology by using the Topology Builder tool for Microsoft Lync Server 2010. Additionally, you receive the following error message:

Your topology has been successfully published, but some errors were encountered. For details, check the log file.
Enabling topology Failure.


When you open the deployment log, you receive the following error message:

Error: An error occurred:

"Microsoft.Microsoft.Rtc.Management.ADConnect.SuitabilityDirectoryException""Message-"The LDAP server is unavailable." LdapError-"ServerDown" "<domain controller name>":"389"


Cause

This issue occurs because Topology Builder incorrectly uses the most recently used server names in the cache as the preferred servers.  Therefore, the topology fails to publish if the preferred servers are offline or unreachable regardless other available servers.

Resolution

To resolve this issue, install the following cumulative update:

2571545 Description of the cumulative update for Lync Server 2010, Core Components: July 2011
Note You should apply the update that is mentioned in Microsoft Knowledge Base (KB) article 2467771 before you apply this update.

For more information, click the following article number 2467771 to view the article 2467771 in the Microsoft Knowledge Base:

2467771 Description of the update package for Lync Server 2010, Administrative Tools: January 2011

Workaround

To work around the issue, run the following command:

Enable-CSTopology -GlobalCatalog Fqdn  -GlobalSettingsDomainController Fqdn -SkipPrepareCheck $True

More Information

For more information about the Topology Builder tool, visit the following Microsoft website:

New Topology Builder Tool
For more information about Enable-CsTopology, visit the following Microsoft website:

Enable-CsTopology

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