How to join a remote work network on Windows?

Question

System administration

There are several laptops and computers that are outside the company, and there is a network of 3 computers and a printer connected via a TP-Link router at work. How to combine them with standard Windows settings into one network, so that they seem to be located in the same room, for this at least you need to buy a real IP address from the provider?

Answer 1

VPN