UE5.7 Online Subsystem Steam can't find sessions

Development Programming & Scripting
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1 
[/Script/Engine.GameEngine]
!NetDriverDefinitions=ClearArray
+NetDriverDefinitions=(DefName=“GameNetDriver”,DriverClassName=“/Script/SteamSockets.SteamSocketsNetDriver”,DriverClassNameFallback=“OnlineSubsystemUtils.IpNetDriver”)

[OnlineSubsystem]
DefaultPlatformService=Steam

[OnlineSubsystemSteam]
bEnabled=true
SteamDevAppId=480

; If using Sessions
bInitServerOnClient=true

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

This is my previous project configuration, which used FindSessions () to obtain Lobby information. However, today I cannot obtain Session information and will return:

[2025.11.19-17.15.49:800][  0]LogSockets: SteamSockets: Initializing Network Relay

I don’t know if the variable bInitServerOnClient should be set to true, because different videos have different opinions. I tried all of them today, but still couldn’t find the sessions.

This is my Code Settings:

// Create
SessionSettings->NumPublicConnections = Params.MaxPlayers;
SessionSettings->bIsLANMatch = IOnlineSubsystem::Get()->GetSubsystemName() == FName("NULL");
SessionSettings->bUsesPresence = true;
SessionSettings->bUseLobbiesIfAvailable = true;
SessionSettings->bShouldAdvertise = true;	
SessionSettings->bAllowJoinViaPresence = true;
SessionSettings->bAllowJoinInProgress = true; // Debug

// Find
LastSessionSearch = MakeShareable(new FOnlineSessionSearch());
LastSessionSearch->MaxSearchResults = MaxSearchResults;
LastSessionSearch->bIsLanQuery = IOnlineSubsystem::Get()->GetSubsystemName() == FName("NULL");
LastSessionSearch->QuerySettings.Set(SEARCH_LOBBIES, true, EOnlineComparisonOp::Equals);

I also saw some posts today saying that it may be a problem with Steam itself?

2

Same here , it was first time i am trying to intergate steam into the project. And 2 days ago i packaged build in 5.7 with advanced session plugins and it worked. Hosting, Finding, Joining from another PC.
Now i am unable to finds session, its always 0.
Hosting works fine as much as i can understand from packaged build logs.

Trying to get to the bottom of it , on whose side the problem , me or steam/UE.

3

me too

4

did you find problem