Unexpetded error during logon

From: Pirillo (ftachi@tin.it)
Date: 04/15/03 

From: "Pirillo" <ftachi@tin.it>
Date: Tue, 15 Apr 2003 08:31:46 +0200

After a few days we have on our DC's at our main site
continuously receives event id 537 security failure audit messages
stating "logon failure".

A description of the event error yields:

      reason: an unexpected error occurred during logon.
      username:
      domain:
      Logon type: 3
      Logon process: Kerberos
      Authentication package: Kerberos
      Workstation name:

There are no reasonos to have this error because we haven't changed any
configuration.

Thanks to all

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