Multiplayer connect/join friends hamachi

I cant play with my friend online, because my friend cant see my server, but if i open 2 times this program i can see my server in same game. So i think this start with ip and thats why cant see my friend. We connect to hamachi, and we try th steam but not work. Here the link:*/0BzRL85-Q4wMOWF92cUNTWjZVb00?e=download

i maked more game, but same story, i can see in same network my server for example i use 2 laptop, but my friend cant see my server if we use the hamachi. What we can do? Thank u very much. Sorry my english not very well.