https://www.itechtics.com/change-network-type-windows-10/

Setting network type using PowerShell

Open PowerShell with administrative privileges
Run the following command:
Get-NetConnectionProfile
See the network name you want to change its type and run the following command:
Set-NetConnectionProfile -Name “ITT” -NetworkCategory Public
Where ITT is the name of your network and you can change the -NetworkCategory switch value to Public or Private.