UE4 Dedicated Server Warning [Steam Subsystem]

Can’t find session and join using IP after enabling staem API

[OnlineSubsystem]
DefaultPlatformService=Steam
PollingIntervalInMs=20
bHasVoiceEnabled=true
bUsesPresence=false

[OnlineSubsystemSteam]
bEnabled=true
SteamDevAppId=480
GameServerQueryPort=7777
bRelaunchInSteam=false
GameVersion=1.0.0.0
bVACEnabled=1
bAllowP2PPacketRelay=false
bUsesPresence=false
P2PConnectionTimeout=90

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