Daily Server Report (Critical Errors, Event ID: 537)

Hi

Daily Server Report

I have recently started to get a lot of "Critical Errors in Security Log"
(5,448), see below.

Can anybody advise/help?

Regards
Barry

Source: Security
Event ID: 537
Logon Failure:
Reason: An error occurred during logon
User Name: ***
Domain: ***
Logon Type: 3
Logon Process: Kerberos
Authentication Package: Kerberos
Workstation Name: -
Status code: 0xC00002EE
Substatus code: 0x0
Caller User Name: -
Caller Domain: -
Caller Logon ID: -
Caller Process ID: -
Transited Services: -
Source Network Address: -
Source Port:



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