Hi all,

I've been working with UDK recently and am now trying to get a Multiplayermode to work.
First of all, I know there are a lot of posts and tutorials on how to implement multiplayer in UDK, I guess I looked into most of them, but there was nothing that could help me, so...

I tried to start a Lanserver from menu, which - as for I know - should be done easily by ConsoleCommand("open <MapName>?Listen").
Map does load, and the game is playable.
Problem: It's not a Server, WorldInfo.NetMode stays NM_Standalone.

If I start the Game via CommandLine (<Path>/udk.exe <MapPath>?listen) everything works fine, NetLoad ist NM_ListenServer and the Game is joinable via Lan.

Difference in the logs:
Log when loaded from CommandLine:
Log: Game class is 'MyMPGame'
Init: WinSock: Socket queue 131072 / 131072
Log: NetMode is now 2
Log: Primary PhysX scene will be in software.

Log when loaded from Menu:
Log: Game class is 'MyMPGame'
Log: Primary PhysX scene will be in software

There are no Warnings or Errors prior.
I'm quite out of options, thanks for your help.