Try running the server and client with a console.
And when he is disconnected there should be some error logging in the console.
If it's there - please post it here.
If not - then it might be some network/firewall issue.
thanks for your answer.
I never did that. Would you know how run the app with a console on a mac ?
Sorry for asking :)
There are StartServer.bat and StartClientConsole.bat
Try changing the .bat to .sh
I think it should work.
Please post here if this worked or not.