Secuirty - workstation locks itself

S

Scanman

I have a XP machine SP2 in a Domain. When no user is logged in the box, XP
will (after about 15 minutes) locks the workstation by itself. Strange even
more, it uses the local admin account. That is, when you hit the C-A-D keys
to unlock the thing the username is blank and the computer listed is the
local account. No one uses the local admin account. There is no group policy
to do this. There are no screen savers in the gpo or the local gpo (which
wouldn't count anyways because its in a domain).

Also when I try to unlock it using the local and domain admin accounts it
won't let me. But I can use a blank username and the correct admin password
and the system gets unlocked after a few moments then re-boots.

This only happens when no user is logged into the box. If a user is logged in
everything runs as normal as far as the screen savers and locking work
stations goes.

Occassionaly there are winlogon.exe errors that will pop up in the app error
window (the one telling you the app has to close and do you want to send the
error to MS) the error is in the winlogon.exe. System runs fine if you ignore
the message and hit don't send and close the window. There are no errors in
the event logs at all.

I reinstalled SP2 but still have the problem. No viruses. Scanned daily using
up to date NAV files.
Any help here would be greatly appreciated.
Many Thanks in advance.
 
S

Steven L Umbach

I have never heard of a computer that locks without any user logged on. Try
going into Local Security Policy and in local policies/security options set
the security option for interactive logon: do not require ctrl+alt+del and
set it do disabled. Also check to see if the computer is configured for auto
logon for some reason instead of showing the ctrl+alt+del for user logon
after startup. --- Steve
 

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