You still receive an error message when you run the Test-OwaConnectivity command after you apply hotfix KB957485 in Exchange Server 2007

Consider the following scenario:

• You have a computer that is running Microsoft Exchange Server 2007 in a disjoint namespace.
• Microsoft Office Outlook Web Access (OWA) is configured to use one or more standard authentication methods other than forms-based authentication (FBA).
• You run the Test-OwaConnectivity command in Exchange Management Shell to verify that OWA is running correctly.

In this scenario, the command returns the following error message:You receive this error message even though OWA works. Additionally, when you use Microsoft Operations Manager (MOM) to monitor OWA, MOM also report that OWA has failed.

This error message occurs because the Exchange Server 2007 server uses adomain\username format during connectivity tests for standard authentication methods. However, in a disjoint namespace scenario, the domain name of the Exchange Server 2007 server differs from the domain name of the Active Directory.

To resolve this problem, install the following update rollup:

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

There are three articles of similar symptoms that were released. The following Microsoft Knowledge KB articles describe different authentication methods scenarios and different disjoint namespace scenarios problems:
Note Update Rollup 2 for Exchange Server 2007 Service Pack 2 resolves the issues in these three articles in addition to the issue that is described in this article.

For more information about disjoint namespace scenario, visit the following Microsoft Web site:

For more information about the Test-OwaConnectivity command, visit the following Microsoft Web site: