Windows Security Log Event ID 5168

Operating Systems Windows 2008 R2 and 7
Windows 2012 R2 and 8.1
Windows 2016 and 10
Windows Server 2019 and 2022
 • Subcategory
Object Access
 • File Share
Type Success
Corresponding events
in Windows 2003
and before

5168: Spn check for SMB/SMB2 fails.

On this page

Spn check for SMB/SMB2 fails.

This event is related to Extended Protection for Authentication in the Server service. SMB hardening. KB article

This event is new to Windows 2008 Release 2 and Windows 7. It does not appear in earlier versions of Windows.

We have not been able to produce this event.

Free Security Log Resources by Randy

Description Fields in 5168

 Security ID:  %1
 Account Name:  %2
 Account Domain:  %3
 Logon ID:  %4

 SPN Name:  %5
 Error Code:  %6

Server Information:
 Server Names:  %7
 Configured Names:  %8
 IP Addresses:  %9

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