I have an issue where users are randomly unable to log onto a certain computer.
We have Windows Server 2003, and XP for the clients.
The error that appears is the generic "Wrong username or bad password" when the user tries to log in, although it seems as though it happens after the username/password dialogue box dissapears (So the user inputs credentials, presses enter, it disappears then the error appears, then the credential box re-appears).
Within Event Viewer, on the client, it says "User cannot log onto this computer" (Or words to that effect).
I have checked that the account is not locked, does not have restrictions in the 'Log on to..' properties, and that the account has not expired.
The user can however log on using a different client.
This has happened about 3 times quite recently with different users.
Does anyone know how I can further investigate this, or have a solution?
UPDATE:
Sorry for the delay on the update, but the error miraculously 'fixed itself' and I had to wait for it to happen again to investigate further. I have also found a solution, which I have posted also.
Event id: 553
Logon Failure:
Reason: User not allowed to logon at this computer
User Name: <user name>
Domain: <domain name>
Logon Type: <logon type>
Logon Process: <process>
Authentication Package: <package>
Workstation Name: <workstation name>