Unreal Engine EOS Didnt Work

Development Programming & Scripting
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1

CreateSession.txt (10.4 KB)

MyEOSGameInstance.cpp (8.8 KB)

MyEOSGameInstance.h (1.4 KB)

DefaultEngine.ini (3.7 KB)

LoginSession.txt (10.3 KB)

I’m implementing EOS multiplayer using Unreal Engine’s OnlineSubsystemEOS. The lobby session is being created successfully (confirmed in logs), but FindSessions() returns 0 results. The session doesn’t appear in Epic Games Developer Portal either.

Environment

  • Engine Version: Unreal Engine 5.7.2

  • Online Subsystem: EOS (Epic Online Services)

  • Session Type: Lobby with Presence

  • Network: P2P Sockets via EOS

What’s Working

:white_check_mark: EOS Login successful
:white_check_mark: Session creation completes without errors
:white_check_mark: Lobby socket connects to EOS backend
:white_check_mark: Lobby ID is generated (visible in logs)
:white_check_mark: StartSession() completes successfully
:white_check_mark: Map loads with “?listen” parameter

What’s NOT Working

:cross_mark: FindSessions() returns 0 results
:cross_mark: Session doesn’t appear in EOS Developer Portal
:cross_mark: Clients cannot discover the hosted session