Overview

You receive this error when scanning Error 106 when scanning a Windows 10 machine after upgrading to 1709 or newer version.  Microsoft changed the way Windows 1709+ handles SPN's for CIFS.

Microsoft network server: Server SPN target name validation level

Cause

Starting in Windows 10 build 1709, how Windows handles SPN's for CIFS: Microsoft network server: Server SPN target name validation level

By default this is set to Off in Windows, however customers that have configurations for higher security such as CIS they will experience this issue.

Resolution

Microsoft has released an update addressing that issue: KB4343909An alternate fix would be to change the Microsoft network server: Server SPN target name validation level security policy setting to Off.

Affected Product

Shavlik Protect 9.2.x

Ivanti Patch for Windows Server 9.x