Change network from public to private on Windows Server 2016

1. Open Powershell
2. Type Get-NetConnectionProfile
   
3. If you have only one network connection you can change the profile to private by typing:

   Get-NetConnectionProfile | Set-NetConnectionProfile -NetworkCategory Private

   

4. If you have multiple network interfaces and would like to change a specific adapter use the Interface Index Property like this:

   Set-NetConnectionProfile -InterfaceIndex 3 -NetworkCategory Private

5. You can then verify the change has taken place by running Get-NetConnectionProfile again:
   

How to change network profile to public

The same command also works to switch back to a public profile

Set-NetConnectionProfile -InterfaceIndex 3 -NetworkCategory  Public