Unable to Start a LAN Game 2

Second page belonging to my first post

private? how can the other pc see a private game? you need public or private and send url::gameId

Thanks so much, that did the tric. I changed a game to Public and we could play a LAN game.
Thank you.

The error, on my Side, occures becaus of a misinterpretation of the Field Visibility. I thought, if one plays in LAN it is per definition a Private game and not Public. Because, why should I go in multiple Player Mode, if I want to start a Private game, then I would start a single player game.

Again, my misstake, thank you for helping.
by the way, the tragic thing is: I am 2 Weeks involved with official Support. They could not help me, although they have the same information as you.