I have to customize the network settings of Virtual Machine, from bridge to sharing.
I don't know as I have done in the past but now when I stop the VM the window closes itself.
How do I have to do for stopping virtual machine and not closing the window?
I suppose you either turned off Parallels NAT adapter in System Preferences - Network, or it is not present in there, such situation also may be caused if there are several Network Locations, and configuration is corrupted