Hi there!
#Port = 7777
When I start a multiplayer game using open IP (make sure steam is disabled in your config file, for now)
this is what I see
the steam error is a good thing
currently steam wont allow open IP to work correctly.
and steam itself simply will not work (soon to be fixed)
notice the listening on port part 
#Code to Start Multiplayer
I wrote a whole tutorial on getting multiplayer working, it still applies in beta5
http://forums.epicgames.com/threads/974712-Tutorials-Guide-Create-Multiplayer-Games-for-UE4
You can’t just open map?Listen
you have to follow the shootergame code,
the most important part is this part:
ShooterGameSession.h
bool AShooterGameSession::HostSession(int32 ControllerId, FName SessionName, const FString & GameType, bool bIsLAN, bool bIsPresence, int32 MaxNumPlayers)
{
//check out this code from shootergame example
}
you should call this using shootergame’s method, from gameinfo/gamemode:
//~~~~~~~~~~~~~~~~~~~
// From Shootergame_menu.cpp
/** Starts the game */
bool AVictoryGameGameInfo::HostGame(APlayerController * PCOwner, const FString & GameType, const FString & InTravelURL)
{
bool bResult = false;
check(PCOwner != NULL);
if (PCOwner)
{
AVictoryGameSession* Session = Cast(GameSession);
if (Session)
{
ULocalPlayer * LP = Cast(PCOwner->Player);
if (LP != NULL)
{
TravelURL = InTravelURL;
//Session->OnCreatePresenceSessionComplete().AddUObject(this, &AVictoryGameGameInfo::OnCreatePresenceSessionComplete);
if (Session->HostSession(LP->ControllerId, GameSessionName, GameType, false, true, 4))
{
// @todo Show loading movie
bResult = true;
}
}
}
}
return bResult;
}
#It all Does Work
In case you need encouragement that real multiplayer is actually working in UE4 with custom projects, in beta5, using the method I am describing:
My video of real multiplayer in beta5
http://forums.epicgames.com/threads/977279-Video-Footage-of-Multiplayer-Packaged-Game-In-UE4-Beta5
enjoy!
Rama
