Disproportionate network logons from a few PCs

Giganews Newsgroups
Subject:Disproportionate network logons from a few PCs
Posted by: Bartm (bartmagui…@yahoo.co.uk)
Date:28 Feb 2007

We have four machines on our network that are filling the Security log
on our server with repeated 538/540 events.  They generate thousands
of events every hour and about 95% of the events in the event log is
from these four machines.  The other ~200 machines are well-behaved
and generate the expected few 538/540 pairs.
I know that I could turn off auditing of these events, but I would
rather understand why this is happening.
I can see that the problem manifests itself when a user is logged on
and I presume that they are connecting to a resource, probably the
printers (the server is also our printserver) - but why is it only
these PCs?

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