Message Bus not working over network

Im having the exact same problem posted in here
I manage to send data between diferent programs in the same PC but not through the network, using the messagebus system.
Im adding -messaging when executing the programs and both machines are in the same subnet.
From what I understood got to make it work by using a companion app? I got kinda lost there.
If someone had this issue before and made it through, let me know how.