I have to domain controller. I have upgrade domain from two 2003 DC to two 2008 R2 domain controller. I did not rise domain ore forest level, so both of them are at 2003 level.
Now it is more than one month, but error are filing up Security event log at both domain controllers.
I do not understand, where i miss something, that i get errors. I know that Failure Code : 0x18 is password error, but I know my password, and I did not misspell the password, but error is popping up…
Log Name: Security
Source: Microsoft-Windows-Security-Auditing
Date: 25.04.2011 11:23:12
Event ID: 4771
Task Category: Kerberos Authentication Service
Level: Information
Keywords: Audit Failure
User: N/A
Computer: DC01.doamin.com
Description:
Kerberos pre-authentication failed.
Account Information:
Security ID: DOMAIN\username
Account Name: username
Service Information:
Service Name: krbtgt/ DOMAIN
Network Information:
Client Address: ::ffff:192.168.168.12
Client Port: 50198
Additional Information:
Ticket Options: 0x40810010
Failure Code: 0x18
Pre-Authentication Type: 2
Certificate Information:
Certificate Issuer Name:
Certificate Serial Number:
Certificate Thumbprint: