Local user accounts constantly locking out - please help!

From: Paul Dussault (paulduss_at_hotmail.com)
Date: 01/28/05 

Date: Fri, 28 Jan 2005 08:07:09 -0500

Hi All,

Windows 2000 Server SP4. Ran without a glitch for 2 years.
Member server, not a DC. Used primarily as Web and FTP server.
Behind a Firewall.
Since a few days, local user accounts (including IUSR, IWAM, etc.) are
constantly locking out. The won't stay unlocked for more than a few minutes.
No special settings in group policies, all default settings.
Nothing obviously wrong in Logs.

The only anomalies I could spot are:

- that the License Logging Service on the DC refuses to start. Could this be
related?
(I can ping the DC from the Web server).

- the Firewall logs indicate MANY port 138 scans from 2 or 3 machines on our
network - always the same ones. Could this be related?

Any hint would be greatly appreciated!!!

TIA

Paul Dussault, MCP

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