Disable steam networking

Unreal Engine Platform & Builds
, , ,
#1

I am trying to connect to a none Steam session (either dedicated or other none Steam client), with no success.
The DefaultEngine.ini I’ve added are:

[/Script/Engine.GameEngine]
+NetDriverDefinitions=(DefName="GameNetDriver",DriverClassName="OnlineSubsystemSteam.SteamNetDriver",DriverClassNameFallback="OnlineSubsystemUtils.IpNetDriver")

[OnlineSubsystem]
DefaultPlatformService=Steam

[OnlineSubsystemSteam]
bEnabled=true
SteamDevAppId=480

[/Script/OnlineSubsystemSteam.SteamNetDriver]
NetConnectionClassName="OnlineSubsystemSteam.SteamNetConnection"

[OnlineSubsystemSteam]
bUseSteamNetworking=false

This is for all users(Client and a none dedicated client “Server”)
I want to connect to supposedly “Null” subsystem game (Via IP) with a client that has Steam Overlay.

How can I pull this off?

I want to have the Steam overlay on Client but to use the Null subsystem.

Thank you!

#2

Still not resolved, Help!

#3

I have struggled with this too no results so far, I think the only way would be to not use subsystem and implement sdk yourself

#4

Hello. I´m having the same issue and i can solve it. In the end, did you solve it swap between online subsystem?

#5

You can now (since 4.22) use bUseSteamNetworking=false inside of [OnlineSubsystemSteam] - this fixes it for me! Steam overlay on clients works, dedicated server uses default net driver, client joins via default net driver.

#6

That’s interesting. We are using bUseSteamNetworking=false in our 4.22.3 project but the client seems to determined to use SteamNetDriver_0 instead of the default net driver IpNetDriver_0. More details here: Server welcomes game client but client restarts the handshake process, then times out - Platform & Builds - Unreal Engine Forums

Would you mind sharing your DefaultEngine.ini? Maybe we are missing something

#7

Any solution for this? We are facing the same issue.

#8

In order to connect via raw IP I had to remove all steam net definitions in the DefaultEngine.ini

[OnlineSubsystemSteam]
bUseSteamNetworking=false
… other stuff

[/Script/Engine.GameEngine]
!NetDriverDefinitions=ClearArray
NetDriverDefinitions=(DefName=“GameNetDriver”,DriverClassName="/Script/OnlineSubsystemUtils.IpNetDriver",DriverClassNameFallback="/Script/OnlineSubsystemUtils.IpNetDriver")
+NetDriverDefinitions=(DefName=“DemoNetDriver”,DriverClassName="/Script/Engine.DemoNetDriver",DriverClassNameFallback="/Script/Engine.DemoNetDriver")

[OnlineSubsystem]
DefaultPlatformService=Steam
… other stuff

DO NOT HAVE THESE SECTIONS
[PacketHandlerComponents]
[/Script/OnlineSubsystemSteam.SteamNetDriver]

After doing that and making sure I

  1. Restarted the Editor after modifying the ini
  2. Recompiled BOTH the server and client so they have the same subsystem

I was getting disconnected due to incompatible_unique_net_id
So I then had to hack the engine in PendingNetGame.cpp by commenting out the following line
//Connection->PlayerId = LocalPlayer->GetPreferredUniqueNetId();

WARNING: I have zero clue what other ramifications there are having a default PlayerId, but I know that’s whats happening if you run the game via editor or run the game without the steam client running. However since the id was simply Steam : DisplayName the value is not actually unique anyway.

#9

Thanks for this! Setting bUseSteamNetworking=false did not work on its own for me, but commenting out all references to SteamNetConnection and SteamAuthComponentModuleInterface in DefaultEngine.ini worked (while leaving DefaultPlatformService=Steam and OnlineSubsystemSteam bEnabled=true). Packaging a LinuxServer with these settings will still initialize the Steam OnlineSubsystem when the server starts up, but it will accept connections with default UE networking stack using IpNetDriver.