Article ID: 974344 - View products that this article applies to.
Consider the following scenario:
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.
The test was unable to log on to Outlook Web Access because of an authentication failure.
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:
(http://support.microsoft.com/kb/972076/ )Description of Update Rollup 2 for Exchange Server 2007 Service Pack 2
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:
(http://support.microsoft.com/kb/954213/ )All Test commands that are related to the Client Access Server fail when you run the commands on an Exchange 2007 server in a disjoint namespace
(http://support.microsoft.com/kb/957485/ )The Test-OwaConnectivity command returns a warning message in Exchange Server 2007 when there is a disjoint namespace
(http://support.microsoft.com/kb/968224/ )You still receive unexpected error messages when you run the Test-OwaConnectivity command or the Test-ActiveSyncConnectivity command after you apply hotfix KB954213 on an Exchange 2007 Service Pack 1-based server
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:
Article ID: 974344 - Last Review: January 22, 2010 - Revision: 1.2