Kerberos audit failures, ~38-42 events PER MINUTE

Question

We have a server running "Windows Server Standard FE" 64bit SP2 (I know, embarrassing). The issue is that our Security log is getting FLOODED with audit failures from Kerberos Service Ticket Operations. We will see 38 all with the EXACT same time-stamp,
then sometimes the next minute will have another 40, sometimes it's a 5 minute gap, sometimes it's a more random gap but regardless it never waits too long before another huge burst of failures. We actually have the issues on other machines running newer system
(2k3, 2k8) but this one is hands down the most troublesome.
Honestly I might be out of my depth here as I'm really not too keen on Kerberos ticket requests, but any information around this would be greatly appreciated to help me investigate the issue further. These errors haven't actually led to any problems or other
errors, just bug the heck out of me when checking audits.
A Kerberos service ticket was requested.
Account Information:
Account Name: <hostname>$@<domain>.LOCAL
Account Domain: <domain>.LOCAL
Logon GUID: {00000000-0000-0000-0000-000000000000}
Service Information:
Service Name: krbtgt/<domain>.LOCAL
Service ID: NULL SID
Network Information:
Client Address: ::1
Client Port: 0
Additional Information:
Ticket Options: 0x60810010
Ticket Encryption Type: 0xffffffff
Failure Code: 0xe
Transited Services: -
This event is generated every time access is requested to a resource such as a computer or a Windows service. The service name indicates the resource to which access was requested.
This event can be correlated with Windows logon events by comparing the Logon GUID fields in each event. The logon event occurs on the machine that was accessed, which is often a different machine than the domain controller which issued the service ticket.
Ticket options, encryption types, and failure codes are defined in RFC 4120.

Answer 1

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