an error mesage

[Vassilev]

What it mean the message in the system event log:"The
Security System detected an attempted downgrade attack
for server DNS/<an win2k3 server name>. The failure code
from authentication protocol Kerberos was "There are
currently no logon servers available to service the logon
request.
(0xc000005e)".

 

[Ken Wickes [MSFT]]

It means you couldn't contact your domain controller.