Multiplayer game cannot be started (2.3.1-stable, 2.4-dev)

[EmOGriND]

Dear all,
I cannot start a multiplayer game (internet or LAN) even with a force start button. In addition, there is no ordinary start button at all! However, players can connect to my game and I can connect to them, we can see the map, see the connection status, chat, choose team preferences and reconnect. It seems that either we spcify a server so that it is impossible to form a team (but changing the settings does not help) or this is a multiplayer bug at least for windows (XP-32 bit) versions. We have exactly the same clients. There is however a message

====== UFO Initialized ======
=============================
==== InitGame ====
Not enough spawn points for team 0
Created AI player (team 0)
Created AI player (team 7)
Used inventory slots after ai spawn: 0
sending heartbeat

This seems rather strange.

Thank you for attention.

[Mattn]

which game mode did you use? and how many players tried to play the game?

[EmOGriND]

I tried to use 1 on 1 mode. Only 1 player tried to join my game.
Other mods were also used with no difference.

It seems that sv maxsoldiersperplayer is  improperly set to 0 at the game creation and I couldn't change this variable after this.