A Windows XP-based client computer uses an archived certificate for network authentication after a new certificate is auto-enrolled in a wireless Active Directory domain

Consider the following scenario:

• In a wireless Active Directory domain, you use the Extensible Authentication Protocol-Transport Layer Security (EAP-TLS) authentication method to communicate with the authenticating server.
• You issue user certificates to client computers in the domain.
• You enable the "Enroll certificates automatically" Group Policy setting on a Windows XP-based client computer in the domain.

When a user certificate is renewed or when a user certificate expires in this scenario, the Windows XP-based client computer receives a new user certificate. Additionally, the previous user certificate is marked as "Archived." However, during later attempts to connect to an access point, the Windows XP-based client computer does not pass network authentication because of a certificate error.

If you capture a network monitor trace when this issue occurs, you discover that the client computer uses the archived certificate for network authentication instead of a new user certificate.

Hotfix information

A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows XP service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites

To apply this hotfix, you must have Windows XP Service Pack 2 installed. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows XP with SP2, x86 Edition

Windows XP with SP3, x86 Edition

To work around this issue, manually delete the archived certificate from the client computer.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

For more information about certificate auto-enrollment in Windows XP, visit the following Microsoft Web site:For more information about auto-enrollment, visit the following Microsoft Web site: