I made a minecraft hamachi server but no-one can enter ( It's a LAN world )?

So all my friends can make hamachi servers in LAN but I can't and I don't know what's the problem…
So here's what I did:
1. I made a new hamachi network, named it and gave it a password…
2. I made a world, opened it in LAN and copy the port
3. I told my friend the network name and password, and he joined it.
4. Then I go to hamachi, copy my ip4v address and gave it to my friend, then I told him the port, and it doesn't work…
Please if you have any idea what I did wrong or what is not working just tell me I'm desperate… Ok maybe not that desperate but I don't understand what did I do wrong.