I don't think so, since it works fine on 0.13.x.

I forgot to mention that we all are able to connect to other public servers, only if we host by ourselves not

I edited the server log in

also I added the client side logs of the connection attempts

Hello, Forum search didn't show any results,not listed in known issues or 0.15. etc... so Here's the bug Report :)

Summary:
Some freinds and me are oftenly playing Factorio together. Therefore one of us hosts the game and the others join. Non dedicated, password protected and max 8 Players. All ...