# UE5.7 Online Subsystem Steam can't find sessions **URL:** \ **Category:** Programming & Scripting\ **Tags:** onlinesubsystem, Steam, unreal-engine, question\ **Created:** [November 19, 2025, 7:42pm UTC](https://forums.unrealengine.com/t/ue5-7-online-subsystem-steam-cant-find-sessions/2676620 "2025-11-19T19:42:39Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![1210451061](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@1210451061](https://forums.unrealengine.com/u/1210451061)\ **Post date:** [November 19, 2025, 7:42pm UTC](https://forums.unrealengine.com/t/ue5-7-online-subsystem-steam-cant-find-sessions/2676620/1 "2025-11-19T19:42:39Z")
```ini [/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: ```auto [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: ```cpp // 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? ---
**Author:** ![Kiry](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Kiry](https://forums.unrealengine.com/u/Kiry)\ **Post date:** [November 20, 2025, 8:16am UTC](https://forums.unrealengine.com/t/ue5-7-online-subsystem-steam-cant-find-sessions/2676620/2 "2025-11-20T08:16:13Z")
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. ---
**Author:** ![\_66637](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@\_66637](https://forums.unrealengine.com/u/_66637)\ **Post date:** [November 20, 2025, 4:28pm UTC](https://forums.unrealengine.com/t/ue5-7-online-subsystem-steam-cant-find-sessions/2676620/3 "2025-11-20T16:28:38Z")
> [@1210451061](#): > > `SteamSockets: Initializing Network Relay` me too ---
**Author:** ![\_66637](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@\_66637](https://forums.unrealengine.com/u/_66637)\ **Post date:** [November 20, 2025, 4:29pm UTC](https://forums.unrealengine.com/t/ue5-7-online-subsystem-steam-cant-find-sessions/2676620/4 "2025-11-20T16:29:35Z")
did you find problem ---
**Author:** ![1210451061](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@1210451061](https://forums.unrealengine.com/u/1210451061)\ **Post date:** [November 21, 2025, 6:13am UTC](https://forums.unrealengine.com/t/ue5-7-online-subsystem-steam-cant-find-sessions/2676620/5 "2025-11-21T06:13:13Z")
```auto [2025.11.21-06.10.52:044][125]LogOnlineSession: STEAM: Found 0 lobbies, finalizing the search ``` Tested again, but still cannot function properly, with the same error message. ---
**Author:** ![Kiry](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Kiry](https://forums.unrealengine.com/u/Kiry)\ **Post date:** [November 23, 2025, 10:39am UTC](https://forums.unrealengine.com/t/ue5-7-online-subsystem-steam-cant-find-sessions/2676620/6 "2025-11-23T10:39:09Z")
For now i switched to different project. Last time i tested i could not manage to find any game thought find session nodes. For my purposes it was sufficient to use friend invitation through Advanced Session Game Instance, and it worked fine. I decided to not dig deeper for now , but for future if issue persist: - I was planning to test if SDK version has any effect , because defaul UE5.7 were 1.61, and steam had 1.63 at the time of writing. - Doing my own basic C++ setup , to see if its Advanced session problems. - Buying personal SteamID , and see if its related to DevID. ---
**Author:** ![\_66637](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@\_66637](https://forums.unrealengine.com/u/_66637)\ **Post date:** [November 24, 2025, 7:23am UTC](https://forums.unrealengine.com/t/ue5-7-online-subsystem-steam-cant-find-sessions/2676620/7 "2025-11-24T07:23:52Z")
can you tell me how to use friend invitation through Advanced Session Game Instance? thanks 🥲 ---
**Author:** ![Kiry](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Kiry](https://forums.unrealengine.com/u/Kiry)\ **Post date:** [November 24, 2025, 9:57am UTC](https://forums.unrealengine.com/t/ue5-7-online-subsystem-steam-cant-find-sessions/2676620/8 "2025-11-24T09:57:44Z")
- You need to inherit you game instance class from Advanced Session Game Instance (can be done in bp/c++) - Then setup it as primary game instance class in project settings - Then override events in friend invitation accepted/received (tho for steam only accepted worked) and call join session node with that data for appropriate controller. - Inside steam , i assume you log from 2 different instances on 2 different machines - Host: Open level on first machine with option: listen - Cleint : Open Game - Host : Shift+Tab open steam overlay \> friend \> right mouse button \> invite to game - Client: Shift + Tab open steam overlay \> friend \> Accept - Done ---
**Author:** ![WellingOne](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@WellingOne](https://forums.unrealengine.com/u/WellingOne)\ **Post date:** [January 7, 2026, 5:13pm UTC](https://forums.unrealengine.com/t/ue5-7-online-subsystem-steam-cant-find-sessions/2676620/9 "2026-01-07T17:13:41Z")
In my case : Use: SessionInterface = Online::GetSubsystem(GetWorld())-\>GetSessionInterface(); instead of SessionInterface = IOnlineSubsystem::Get()-\>GetSessionInterface(); ---
**Author:** ![Asche4983](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Asche4983](https://forums.unrealengine.com/u/Asche4983)\ **Post date:** [May 5, 2026, 5:31pm UTC](https://forums.unrealengine.com/t/ue5-7-online-subsystem-steam-cant-find-sessions/2676620/10 "2026-05-05T17:31:14Z")
![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/8/0/2/802f8b381e02f0a4e073761d7a6e5420849c1b77.png) Resolved，5.74