Event ID 4775

An account could not be mapped for logon 

An account could not be mapped for logon.

Authentication Package: %1
Account Name:           %2


It appears that this event never occurs.

Microsoft Documentation

Event ID - 4775


Lookup Audit Policy Configuration Settings

C:\> AuditPol.exe /get /subcategory:"Credential Validation"
How to enable Windows Auditing
Recommended Audit Policy

Operating Systems:
Windows 2008 R2 Windows 2012 R2 Windows 2016 Windows 2008 Windows 2012 Windows 2019 Windows 2022

Tags:
Domain Controller Audit Failure
Audit Category:
Logon/Logoff

Audit Subcategory:
Credential Validation
Legacy Events:
679

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