Windows Security Log Event ID 4823

Operating Systems Windows 2012 R2 and 8.1
Windows 2016 and 10
Windows Server 2019 and 2022
Category
 • Subcategory		System
 • Other System Events
Type Failure
Corresponding events
in Windows 2003
and before		  

4823: NTLM authentication failed because access control restrictions are required

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This event is new to Server 2012 R2. It does not appear in earlier versions.

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Examples of 4823

NTLM authentication failed because access control restrictions are required.

Account Name:   %1
Device Name:    %2
Error Code:     %3

Authentication Policy Information:
    Silo Name:  %4
    PolicyName: %5

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