Can Find Session and Join Session Success,but no level open

i use option listen to open level after creat session,in 2 pc with UE5.2.1 and WIN10 x64,can find session created other but show ping 9999,first click to join session then print join success but nothing happened,whatever its ediot or packet
Steam mybe worked at less i can open the steam overlay

I have see other same question in this bbs but no one worked
Very thank your help
Sorry for chinese text but my blueprint↓


image
my DefaultEngine↓
[/Script/Engine.GameEngine]
+NetDriverDefinitions=DefName=“GameNetDriver”,DriverClassName=“OnlineSubsystemSteam.SteamNetDriver”,DriverClassNameFallback=“OnlineSubsystemUtils.IpNetDriver”)

[OnlineSubsystem]
DefaultPlatformService=Steam

[OnlineSubsystemSteam]
bEnabled=true
bInitServerOnClient=true
bUseSteamNetworking =true
bAllowP2PPacketRelay=true
SteamDevAppId=my game id
GameServerQueryPort=27015
GameVersion=1.0.0.0
bVACEnabled=1
bRelaunchInSteam=false
P2PConnectionTimeout=90

[/Script/OnlineSubsystemSteam.SteamNetDriver]
NetConnectionClassName=“OnlineSubsystemSteam.SteamNetConnection”

[ConsoleVariables]
net.CurrentHandshakeVersion=2
net.MinHandshakeVersion=2



warning log,can creat session,but cant to join(or join but cant clintTrvel? but why?)