Playing multiplayer on different machines

I was going through the tutorial of Unity Multiplayer Networking (Learn Game Development Without Coding Experience | Unity). I was able to complete it without any problem. But both the instances were running on the same machine(one standalone application and other in play mode). I want play two game instances on two different machines(both laptop), but cannot do so. Both the laptops are connected to the university network. Can anyone help me with this problem.

I think you actually need to connect the Laptops with a LAN connection. If you dont want to use a cable, then you can make a VPN connection between the two Laptops. This is possible in Windows or with other tools such as Hamachi.