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Internet Solutions


Client certificate required

  Some web sites require you have a special "certificate" to access the site. This typically occurs with higher security sites, such as a corporate web site for employee access only. You need this certificate to access the site.   
Server Error

403.7 - Forbidden: SSL client certificate is required.

The page you are attempting to access requires your browser to have a Secure Sockets Layer (SSL) client certificate that the Web server will recognize. The client certificate is used for identifying you as a valid user of the resource.

Error messages will differ depending on the web server and if replaced by the web site designers.
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Frequency is relative to other Internet warnings and errors.
  Solutions and Fixes  
Get Valid Certificate
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You will need to contact the web owners to get a valid certificate (what is called a client SSL certificate).
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  FaultWire Staff
Posted: 26-Oct-2008
  Official Explanation  
  technical details

[The following is written for the web site owner, so "you" referrers to the site owner/administrator, just to keep it confusing! - FaultWire.]

You have configured the server to require a certificate for client authentication, but you do not have a valid client certificate installed.

(From Description of Microsoft Internet Information Services status codes)
Additional notes for the web server administrator - Microsoft Knowledgebase article 186812.
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  Research this Issue  
Getting search results...
  "403.7 - Client certificate required" is only supported by Microsoft IIS (Internet Information Services) web servers.

The four hundred series of errors indicate something was sent to the remote web server incorrectly.
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