virtualbox.org

Is it possible to change the network model on pc power on?

VirtualBox seems unable to change the attached network mode while PC is power on, I think it is quite not reasonable under production environment, for testing lab, I believe, we sometimes have to change the network mode, say from NAT to Bridge or from NAT to Host-only, may I know if there's anyway can change the network mode without power off machines? or any new release edition will allow to do this?

Not at this time.

You could attach the 4 available VM NIC's to each VBox way and select(en/disable) one within the Guest.