We changed admin password for domain account. We checked for services and other things that may be using the account.
Kerberos pre-authentication failed.
Account Information:
Security ID:
Domain\Username
Account Name:
Username
Service Information:
Service Name:
krbtgt/Domain
Network Information:
Client Address:::1
Client Port:
0
Additional Information:
Ticket Options:0x40810010
Failure Code:
0x18
Pre-Authentication Type:2
Certificate Information:
Certificate Issuer Name:
Certificate Serial Number:
Certificate Thumbprint:
Certificate information is only provided if a certificate was used for pre-authentication.
Pre-authentication types, ticket options and failure codes are defined in RFC 4120.
If the ticket was malformed or damaged during transit and could not be decrypted, then many fields in this event might not be present.
The DC is the PDC and we get about 5 of these then account gets locked out.