Two servers cannot have the same IP address. When you are using VPN you are going over the Internet which means the IP address you try to connect to will have to be a valid, (not 10.x.x.x or 192.168.x ...

A network is great, but what if you just want to connect two Macs and transfer gobs of information as fast as you can? Using a gigabit ethernet cable or a Mac with 802.11ac (Wi-Fi 5) or later wireless ...