hi…
i am working on my project since 6 months … to day i was package my project and it is not work between 2 pc in local network and internet network 
i do evry think right … i set game engine ini file exactly what you say in doc
but no think work
the project is working only in the same pc
but i do mistake i run two game in same pc and steam is working after that the steam was not show inside my project