Event ID 40960 + 40961 / SPNEGO

I am using Windows XP with SP2 and latest updates installed in an AD Domain, dc is a Windows Server 2003. The problem is that the user account has been automatically locked and am getting the below in the event ids:


Event ID: 40690
Type: Warning
Usre: N/A
Source: LSASRV
Category: SPNEGO (Negotiator)

Description:
The Security System detected an attempted downgrade attack for server cifs/SERVERNAME.DOMAINNAME.net. The failure code from authentication protocol Kerberos was "The user account has been automatically locked because too many invalid logon attempts or password change attempts have been requested. (0xc0000234)".

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

Event ID: 40691
Type: Warning
Usre: N/A
Source: LSASRV
Category: SPNEGO (Negotiator)

Description: The Security System could not establish a secured connection with the server cifs/SERVERNAME.DOMAINNAME.net. No authentication protocol was available.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

Check the below articles to solve your issue:

DNS request for prisoner.iana.org
http://support.microsoft.com/default...b;en-us;259922

Event IDs 40960 and 40961 in the System Event Log When You Restart Windows Server 2003 After You Run Dcpromo.exe
http://support.microsoft.com/default...b;en-us;823712

LSASRV Event IDs 40960 and 40961 When You Promote a Server to a Domain Controller Role
http://support.microsoft.com/default...b;en-us;824217

You cannot access network resources after you try to log on to a Windows XP Service Pack 2-based computer
http://support.microsoft.com/default...b;en-us;885887

Thanks but the articles that you have listed are not helping me? Do you have any other methods?

I think that the most common problem for this issue is given in the below link that points with time synchronization or misconfigured DNS:

http://www.eventid.net/display.asp?e...LsaSrv&phase=1