CreateSession node always fails

Development Programming & Scripting Multiplayer & Networking
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1

Hello.
I’m building a basic multiplayer game.

I use this BP to make a new session:

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But everytime I click on the WidgetButton, the string “CAN’T HOST GAME” gets printed.

This is my Build.cs

PublicDependencyModuleNames.AddRange(new string[] { "Core", "CoreUObject", "Engine", "InputCore", "OnlineSubsystem", "OnlineSubsystemNull", "OnlineSubsystemUtils" });

		PrivateDependencyModuleNames.Add("OnlineSubsystem");

And I added in Config/DefaultEngine.ini this:

[OnlineSubsystem]
DefaultPlatformService=Null

I port forwarded the port 7777 both on TCP and UDP protocols.

I want to make a session using open MapName?listen and my friend to join using open ip.ip.ip.ip
Where ip is my public IP with the port 7777 open.

Thanks in advance!

2

Resolved restarting the editor (and possibly also Visual Studio)