Install the program and authorize under the created data. Now, on one of the PCs logged in Hamachi click on "Create a new network", enter ANY network name and.
When the local IP and port are found, type them into the "Server Address" field (under either Direct Connect or in the Add Server dialogue), formatted like IP.
Select the “Open to LAN” button, customize multiplayer options, then lastly select “Start LAN World” in the lower left corner, and a 5-digit LAN number will.