Microsoft KB Archive/239485

= XWEB: OWA and IIS Authentication on a Member Server =

Article ID: 239485

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Outlook Web Access 5.5
 * Microsoft Exchange Server 5.5 Standard Edition

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This article was previously published under Q239485



SYMPTOMS
If Microsoft Outlook Web Access (OWA) and Microsoft Internet Information Server (IIS) are installed on a member server, users may be prompted for credentials three times and then get a blank screen with no error messages.



CAUSE
This can be caused by IIS looking to the local security account manager (SAM) database for user authentication rather than to the domain controller.



WORKAROUND
To work around this problem:
 * 1) In the IIS Manager, select the Exchange Server virtual directory and bring up the properties.
 * 2) Click the Directory Security tab, and click Edit on the Anonymous Access and Authentication control.
 * 3) Make sure that Basic Authentication is checked, and click Edit. In the box, type the domain where the Exchange Server computer, IIS computer, and OWA are located. Click OK to quit.
 * 4) Stop and start the WWW services.

Keywords: kbprb KB239485

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