random lockouts

From: KevinB (kevinb@centralchurch.com)
Date: 11/04/02


From: "KevinB" <kevinb@centralchurch.com>
Date: Mon, 4 Nov 2002 09:45:48 -0800


I've got a network with several Windows 2000 Servers and
about 150 Windows 98 clients. At random times, currently
logged on users will lose authentication. They can log in
just fine, and work in network shares just fine, but then
suddenly they are told they do not have permission to
access the network drive. They lose access to everything
on the network. When they try to log back in they are
locked out. My security log shows the attempts to access
the file they were working in just minutes before, lists
it with invalid logon name or password. There are no
previous logon failures for that account, and there are no
login attempts from computers other than the one the user
was working on. Has anyone had a similar situation of
users being booted and then locked out. Kerberos does not
log any errors. When I unlock their account, they can log
in just fine. This usually happens to 3 or 4 users a
day. My network is behind a firewall, with current virus
sigs, and current patching. Anyone seen similar, or have
any ideas?
Thanks



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