System Log Warnings : LSASRV 40961 & 40960

I’m pretty sure I have in some configuration somewhere, a NetBIOS domain
name\ or an @fqdn.com where I shouldn’t. The server is running IIS &
Exchange 2003, configured as an SMTP bridgehead. I just can’t seem to find
out where, does anyone know where or what I should be looking for? Searching
on the event ID’s below hasn’t been helpful, there are a lot of hits, but
nothing that relates to what I’m seeing.

I’m getting the following warnings in my system log every few hours:

Event Type: Warning
Event Source: LSASRV
Event Category: SPNEGO (Negotiator)
Event ID: 40961
Date: 8/25/2005
Time: 9:41:32 AM
User: N/A
Computer: SERVER1
Description:
The Security System could not establish a secured connection with the server
ldap/dc002.fqdn.com/fqdn.com@xxxxxxxxx No authentication protocol was
available.

Event Type: Warning
Event Source: LSASRV
Event Category: SPNEGO (Negotiator)
Event ID: 40960
Date: 8/25/2005
Time: 9:41:32 AM
User: N/A
Computer: SERVER1
Description:
The Security System detected an authentication error for the server
ldap/dc002.fqdn.com/fqdn.com@xxxxxxxxx The failure code from authentication
protocol Kerberos was "The attempted logon is invalid. This is either due to
a bad username or authentication information.
(0xc000006d)".

.

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