This article was previously published under Q312827
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You may see an incorrect authentication package name in audit event 529 (Logon Failure). This might occur if a custom authentication package has been installed and someone then tries to log on to the computer from the network by using a local account with an incorrect password. A custom authentication package name may be listed instead of NTLM in the audit logon failure event. The event log may mention the last installed authentication package name instead of the package that was actually used to perform authentication. For example:
Source: Security Category: Logon/Logoff Event ID: 529 Description: Logon Failure: Reason: Unknown user name or bad password User Name: Administrator Domain: Domain Logon Type: 3 Logon Process: NtLmSsp Authentication Package: CustomAP Workstation Name: Clientcomputername
To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack
The English version of this fix should have the following file attributes or later:
Microsoft Windows 2000 Server SP1, Microsoft Windows 2000 Server SP2, Microsoft Windows 2000 Advanced Server SP1, Microsoft Windows 2000 Advanced Server SP2, Microsoft Windows 2000 Professional SP1, Microsoft Windows 2000 Professional SP2