Article ID: 940779 - View products that this article applies to.
You use Microsoft Office Communicator to externally connect to the Microsoft Office Communications Server Web Components by using Microsoft Internet Security and Acceleration (ISA) Server 2004 or ISA Server 2006.
When you do this, you receive the following error message:
When you click More details, you receive the following error message:
Cannot Synchronize Address Book
This problem occurs if the following conditions are true:
Cannot synchronize with the corporate address book. The cause of this problem is unknown. Please contact your system administrator with this information.
Error Code 500 Internal Server Error. The target principal name is incorrect. (-2146893022).
This problem occurs because the subject name of the certificate is listed last in the Subject Alternative Names list. ISA Server requires the subject name to be listed first in the Subject Alternative Names list.
Note To confirm the cause of this problem, you can use IIS Manager to determine whether the subject name is listed first in the Subject Alternative Names list. To do this, follow these steps:
To resolve this problem use one of the following methods.
Method 1Create a certificate for the Web Components by using the Communications Certificate Wizard in Communications Server. Make sure that one of the following conditions is true:
Method 2Change the ISA web publishing rule to use the first name that is listed in the Subject Alternative Names list of the certificate that is currently in use by the Web Components.
Method 3Install ISA 2006 Service Pack 1 on ISA 2006 as Service Pack 1 removes the requirement for the subject name to be listed first in the Subject Alternative Names list.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Article ID: 940779 - Last Review: February 1, 2010 - Revision: 3.1