[0.12.2] cannot connect with multiple player to multiplayer

[LoSboccacc]

I have this server with the headless factorio


there is a friend of mine which is behind nat, while both me and the server can accept internet connetion

if he connects to the server, nobody else can

if we connect to the server before him, then he can't join

that kind of defy the purpose of a multiplayer server which is to workaround these natting problems.

[kovarex]

I believe that it is a duplicate of this problem: https://forums.factorio.com/forum/vie ... 6&start=10