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Event ID 22 — Certificate Acquistion and Deletion

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Applies To: Windows Server 2008

If a NAP client computer is not able to contact the HRA server, or if server components are not correctly configured on HRA servers, certification authority (CA) servers, or Network Policy Server (NPS), the client computer will not be able to obtain a health certificate. IPsec policies typically restrict network communication of computers that do not have a valid health certificate.

A compliant NAP client computer might not be able to obtain a health certificate from an HRA server for the following reasons:

  • An error in trusted server group configuration of the NAP client
  • Network connectivity problems on the HRA server, the CA server, or the NAP client
  • A configuration problem on the HRA server
  • A configuration problem on the CA server associated with the HRA

Event Details

Product: Windows Operating System
ID: 22
Source: Microsoft-Windows-NetworkAccessProtection
Version: 6.0
Symbolic Name: NAP_EVENT_URL_CERTIFICATE_RETRIEVED
Message: The Network Access Protection Agent successfully acquired a certificate for the request with the correlation-id %2 from %1.
The certificate can be identified by its thumbprint of %3

Resolve

This is a normal condition. No further action is required.

Certificate Acquistion and Deletion

NAP Infrastructure