Microsoft KB Archive/190004

= Error 403.7 or "Connection to Server Could Not Be Established" =

Article ID: 190004

Article Last Modified on 6/22/2005

-

APPLIES TO


 * Microsoft Internet Information Server 4.0

-



This article was previously published under Q190004



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



SYMPTOMS
One of the following errors occurs when trying to browse a Web site that has Secure Sockets Layer (SSL) enabled:


 * HTTP Error 403

403.7 Forbidden: Client certificate required

This error occurs when the resource you are attempting to access requires your browser to have a client Secure Sockets Layer (SSL) certificate that the server recognizes. This is used for authenticating you as a valid user of the resource.

Please contact the Web server's administrator to obtain a valid client certificate.

-or-
 * Connection to the server could not be established.



CAUSE
The Internet Explorer client certificate and the Internet Information Server (IIS) client certificate need to be synchronized.



WORKAROUND
To work around this problem, run the following three commands from a command prompt in the <%SystemRoot%>\System32\Inetsrv directory:

  IISCA Net Stop IISAdmin /y Net Start W3SVC

(c) Microsoft Corporation 2000, All Rights Reserved. Contributions by Kevin Zollman, Microsoft Corporation.

Keywords: kbprb kbpending KB190004

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.