SymptomsWhen you are starting Windows Virtual Machine, the following error occurs in Mac, which however does not prevent virtual machine from starting:
The server does not exist or is not operational at this time.
Check the server name or IP address and your network connection and try again.
CauseThe cause of the error message is that somewhere on your Mac there are aliases linked to network resources which are no longer available.
ResolutionPlease search for "dead" aliases on your Mac, linked to network resources which are no longer available.
Remove them manually and check if error message reappears.