This article was previously published under Q310732
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When you log on with a smart card, you may receive the following error message:
The handle is invalid.
This error message occurs if the certificate for the Certificate Authority (CA) that issued the smart card logon certificate is not contained in the NTAuth store on the domain controller that processes the logon request. This is more likely to occur if a third-party CA is used to issue the smart card logon certificate. A Windows 2000-based CA automatically publishes its certificate into the NTAuth store in Active Directory.
You can verify the presence of the CA certificate in the NTAuth store by using the Certmgr.exe tool. This tool is part of the Authenticode for Microsoft Internet Explorer 5 tools, and is available from the following Microsoft Web site:
This output shows that there is one certificate (issued to the "Corporate Enterprise" CA) in the NTAuth store.
To resolve this issue, publish the CA certificate in Active Directory. For additional information about publishing to the NTAuth store, click the article number below to view the article in the Microsoft Knowledge Base:
295663 How to Import a Third-Party Certificate into the NTAuth Store