Client Cert. Mapping Only Works w/First Page on Proxy Connection

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Article ID: 190009
This article was previously published under Q190009
This article has been archived. It is offered "as is" and will no longer be updated.
We strongly recommend that all users upgrade to Microsoft Internet Information Services (IIS) version 6.0 running on Microsoft Windows Server 2003. IIS 6.0 significantly increases Web infrastructure security. For more information about IIS security-related topics, visit the following Microsoft Web site:
http://www.microsoft.com/technet/security/prodtech/IIS.mspx
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Symptoms

Over a proxy, after the initial certificate mapping has occurred, subsequent attempts to map the certificate during the same connection cause an error message of type 401.

Cause

When going through a proxy, although Internet Information Server (IIS) does reset the authentication after each request, it does not also retry Mapping the next request.

Resolution

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
152734 How to Obtain the Latest Windows NT 4.0 Service Pack

Status

Microsoft has confirmed this to be a problem in Internet Information Server version 4.0. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.

Properties

Article ID: 190009 - Last Review: October 26, 2013 - Revision: 6.0
Keywords: 
kbnosurvey kbarchive kbbug kbfix KB190009

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