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Event ID: 14050 Source: Microsoft-Windows-Hyper-V-VMMS-Admin

Failed to register service principal name.
In my case I install Hyper-V in DCs and fix this error changing the Start mode on Hyper-V Services:
Hyper-V Image Management Service
Hyper-V Networking Management Service
Hyper-V Virtual Machine Management

From Automatic to Automatic (Delayed Start).
The problem fix only changing the method to start the three services from Hyper-V (Hyper-V Management, Hyper-V Networking Management, Hyper-V Virtual Machine) from Automatic to Automatic (Delayed Start).
This my be caused by a problem contacting your domain controllers. Verify that you have full connectivity to your DC.

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