In Microsoft Windows Server 2003, when you click to select the
Smart card is required for interactive logon check box in the properties of all the user accounts in Active Directory Users and Computers, you expect that users who log on interactively must supply a smart card to log on. However, services and scheduled tasks that use an account to log on also cannot log on if a smart card is not present.
In this scenario, you see events that are similar to the following when you view the Security log in Event Viewer:
EVENTID: 531
Category: "LOGON/LOGOFF"
Logon Failure:
Reason: Account currently disabled
User Name: Name_Of_Service_Or_scheduled_Task
Domain: Domain
Logon Type: 4
Logon Process: Advapi
Authentication Package: Negotiate
Workstation Name: Computer_Name
This problem can affect client computers that are running Windows Server 2003, Microsoft Windows XP, or Microsoft Windows 2000.