Steam matches filtered out on internet

Hello again,
Currently we are making a dedicated server working through Steam. After some time we managed to get the server working perfectly on LAN, but after trying to connect through internet we found that our server is being filtered out, although it is online and we can connect to it using the command open Steam.OWNINGID.

This are our server logs

LogInit: Build: ++UE4+Release-4.19-CL-0
LogInit: Engine Version: 4.19.2-0+++UE4+Release-4.19
LogInit: Compatible Engine Version: 4.19.0-0+++UE4+Release-4.19
LogInit: Net CL: 0
LogDevObjectVersion: Number of dev versions registered: 18
LogDevObjectVersion:   Dev-Blueprints (B0D832E4-1F89-4F0D-ACCF-7EB736FD4AA2): 10
LogDevObjectVersion:   Dev-Build (E1C64328-A22C-4D53-A36C-8E866417BD8C): 0
LogDevObjectVersion:   Dev-Core (375EC13C-06E4-48FB-B500-84F0262A717E): 2
LogDevObjectVersion:   Dev-Editor (E4B068ED-F494-42E9-A231-DA0B2E46BB41): 23
LogDevObjectVersion:   Dev-Framework (CFFC743F-43B0-4480-9391-14DF171D2073): 33
LogDevObjectVersion:   Dev-Mobile (B02B49B5-BB20-44E9-A304-32B752E40360): 2
LogDevObjectVersion:   Dev-Networking (A4E4105C-59A1-49B5-A7C5-40C4547EDFEE): 0
LogDevObjectVersion:   Dev-Online (39C831C9-5AE6-47DC-9A44-9C173E1C8E7C): 0
LogDevObjectVersion:   Dev-Physics (78F01B33-EBEA-4F98-B9B4-84EACCB95AA2): 0
LogDevObjectVersion:   Dev-Platform (6631380F-2D4D-43E0-8009-CF276956A95A): 0
LogDevObjectVersion:   Dev-Rendering (12F88B9F-8875-4AFC-A67C-D90C383ABD29): 25
LogDevObjectVersion:   Dev-Sequencer (7B5AE74C-D270-4C10-A958-57980B212A5A): 6
LogDevObjectVersion:   Dev-VR (D7296918-1DD6-4BDD-9DE2-64A83CC13884): 1
LogDevObjectVersion:   Dev-LoadTimes (C2A15278-BFE7-4AFE-6C17-90FF531DF755): 1
LogDevObjectVersion:   Private-Geometry (6EACA3D4-40EC-4CC1-B786-8BED09428FC5): 2
LogDevObjectVersion:   Dev-AnimPhys (29E575DD-E0A3-4627-9D10-D276232CDCEA): 16
LogDevObjectVersion:   Dev-ReflectionCapture (6B266CEC-1EC7-4B8F-A30B-E4D90942FC07): 1
LogDevObjectVersion:   Dev-Automation (0DF73D61-A23F-47EA-B727-89E90C41499A): 1
LogInit: Compiled (64-bit): Oct  1 2018 12:59:14
LogInit: Compiled with Visual C++: 19.00.24215.01
LogInit: Build Configuration: Development
LogInit: Branch Name: ++UE4+Release-4.19
LogInit: Command Line: TheFogTerrainTest_05 -log
LogInit: Base Directory: E:/TheFog_build/WindowsNoEditor/ShooterGame/Binaries/Win64/
LogInit: Installed Engine Build: 0
LogStreaming: Display: Took  0.028s to delete old logs.
LogInit: Presizing for max 2097152 objects, including 50000 objects not considered by GC, pre-allocating 6000000 bytes for permanent pool.
LogStreaming: Display: Async Loading initialized: Event Driven Loader: true, Async Loading Thread: false
LogInit: Object subsystem initialized
[2018.10.08-15.11.18:780][  0]LogInit: Selected Device Profile: [WindowsServer]
[2018.10.08-15.11.18:780][  0]LogInit: Applying CVar settings loaded from the selected device profile: [WindowsServer]
[2018.10.08-15.11.18:809][  0]LogInit: Computer: DESKTOP-D192IUK
[2018.10.08-15.11.18:810][  0]LogInit: User: Halbard
[2018.10.08-15.11.18:812][  0]LogInit: CPU Page size=4096, Cores=4
[2018.10.08-15.11.18:812][  0]LogInit: High frequency timer resolution =3.903991 MHz
[2018.10.08-15.11.18:813][  0]LogMemory: Memory total: Physical=15.9GB (16GB approx)
[2018.10.08-15.11.18:813][  0]LogMemory: Platform Memory Stats for WindowsServer
[2018.10.08-15.11.18:813][  0]LogMemory: Process Physical Memory: 112.30 MB used, 112.30 MB peak
[2018.10.08-15.11.18:813][  0]LogMemory: Process Virtual Memory: 122.66 MB used, 122.66 MB peak
[2018.10.08-15.11.18:814][  0]LogMemory: Physical Memory: 12917.30 MB used,  3405.59 MB free, 16322.89 MB total
[2018.10.08-15.11.18:814][  0]LogMemory: Virtual Memory: 4573.14 MB used,  3405.59 MB free, 134217728.00 MB total
[2018.10.08-15.11.19:313][  0]LogInit: Using OS detected language (en-GB).
[2018.10.08-15.11.19:313][  0]LogInit: Using OS detected locale (en-GB).
[2018.10.08-15.11.19:316][  0]LogTextLocalizationManager: No localization for 'en-GB' exists, so 'en' will be used for the language.
[2018.10.08-15.11.19:316][  0]LogTextLocalizationManager: No localization for 'en-GB' exists, so 'en' will be used for the locale.
[2018.10.08-15.11.19:359][  0]LogStreaming: Display: Took  0.053s to EndInitTextLocalization.
[2018.10.08-15.11.19:586][  0]LogAssetRegistry: FAssetRegistry took 0.0600 seconds to start up
[2018.10.08-15.11.20:006][  0]LogPackageLocalizationCache: Processed 9 localized package path(s) for 1 prioritized culture(s) in 0.017576 seconds
[2018.10.08-15.11.20:007][  0]LogPakFile: New pak file ../../../ShooterGame/Content/Paks/ShooterGame-WindowsNoEditor.pak added to pak precacher.
[2018.10.08-15.11.20:099][  0]LogInit: Selected Device Profile: [WindowsServer]
[2018.10.08-15.11.20:499][  0]LogNetVersion: ShooterGame , NetCL: 0, EngineNetVer: 2, GameNetVer: 0 (Checksum: 895770705)
[2018.10.08-15.11.21:891][  0]LogUObjectArray: 35106 objects as part of root set at end of initial load.
[2018.10.08-15.11.21:895][  0]LogUObjectAllocator: Warning: 7039536 Exceeds size of permanent object pool 6000000, please tune SizeOfPermanentObjectPool.
[2018.10.08-15.11.21:896][  0]LogUObjectArray: CloseDisregardForGC: 35106/0 objects in disregard for GC pool
[2018.10.08-15.11.22:015][  0]LogSubstanceCoreModule: Substance [CPU] Engine Loaded, Max Texture Size = 2048
[2018.10.08-15.11.22:328][  0]LogAndroidPermission: UAndroidPermissionCallbackProxy::GetInstance
[2018.10.08-15.11.22:343][  0]LogOcInput: OculusInput pre-init called
[2018.10.08-15.11.22:415][  0]LogEngine: Initializing Engine...
[2018.10.08-15.11.22:424][  0]LogStats: UGameplayTagsManager::ConstructGameplayTagTree: Construct from data asset -  0.000 s
[2018.10.08-15.11.22:425][  0]LogStats: UGameplayTagsManager::ConstructGameplayTagTree: GameplayTagTreeChangedEvent.Broadcast -  0.000 s
[2018.10.08-15.11.23:152][  0]LogInit: Texture streaming: Disabled
[2018.10.08-15.11.23:155][  0]LogAnalytics: [UEGame.UnrealEngine.Release|E8D0A7954230345C9C66248916D551F7|Shooter Game] APIServer = https://datarouter.ol.epicgames.com/. AppVersion = 4.19.2-0+++UE4+Release-4.19
[2018.10.08-15.11.23:184][  0]LogAnalytics: [UEGame.UnrealEngine.Release|E8D0A7954230345C9C66248916D551F7|Shooter Game] SetUserId ANON-{52F9C1FA-4DA3-59F8-960F-DEAB68A19881}||
[2018.10.08-15.11.23:184][  0]LogAnalytics: [UEGame.UnrealEngine.Release|E8D0A7954230345C9C66248916D551F7|Shooter Game] AnalyticsET::StartSession
[2018.10.08-15.11.23:364][  0]LogInit: Display: Game Engine Initialized.
[2018.10.08-15.11.23:372][  0]LogGameplayTags: Display: UGameplayTagsManager::DoneAddingNativeTags. DelegateIsBound: 0
[2018.10.08-15.11.23:372][  0]LogStats: UGameplayTagsManager::ConstructGameplayTagTree: Construct from data asset -  0.000 s
[2018.10.08-15.11.23:372][  0]LogStats: UGameplayTagsManager::ConstructGameplayTagTree: GameplayTagTreeChangedEvent.Broadcast -  0.000 s
[2018.10.08-15.11.23:397][  0]LogInit: Display: Starting Game.
[2018.10.08-15.11.23:409][  0]LogNet: Browse: /Game/Maps/TheFogTerrainTest_05?Name=Player
[2018.10.08-15.11.23:421][  0]LogLoad: LoadMap: /Game/Maps/TheFogTerrainTest_05?Name=Player
[2018.10.08-15.11.23:479][  0]LogStreaming: Display: /Game/Maps/TheFogTerrainTest_05 is prestreaming /Game/Maps/TheFog_Map_Cars
[2018.10.08-15.11.23:479][  0]LogStreaming: Display: /Game/Maps/TheFogTerrainTest_05 is prestreaming /Game/Maps/TheFog_Map_Commerce
[2018.10.08-15.11.23:480][  0]LogStreaming: Display: /Game/Maps/TheFogTerrainTest_05 is prestreaming /Game/Maps/TheFog_Map_EmptyBuildings
[2018.10.08-15.11.23:481][  0]LogStreaming: Display: /Game/Maps/TheFogTerrainTest_05 is prestreaming /Game/Maps/TheFog_Map_Houses
[2018.10.08-15.11.23:481][  0]LogStreaming: Display: /Game/Maps/TheFogTerrainTest_05 is prestreaming /Game/Maps/TheFog_Map_Library
[2018.10.08-15.11.23:481][  0]LogStreaming: Display: /Game/Maps/TheFogTerrainTest_05 is prestreaming /Game/Maps/TheFog_Map_Ocean
[2018.10.08-15.11.23:481][  0]LogStreaming: Display: /Game/Maps/TheFogTerrainTest_05 is prestreaming /Game/Maps/TheFog_Map_PoliceStation
[2018.10.08-15.11.23:482][  0]LogStreaming: Display: /Game/Maps/TheFogTerrainTest_05 is prestreaming /Game/Maps/TheFog_Map_School
[2018.10.08-15.11.36:402][  0]LogAIModule: Creating AISystem for world TheFogTerrainTest_05
[2018.10.08-15.11.40:766][  0]LogLoad: Game class is 'BP_FogGameMode_C'
[2018.10.08-15.11.40:841][  0]LogTemp: Display: ParseSettings for GameNetDriver
[2018.10.08-15.11.40:853][  0]LogTemp: Display: ParseSettings for SteamNetDriver_0
[2018.10.08-15.11.40:853][  0]LogTemp: Display: ParseSettings for GameNetDriver
[2018.10.08-15.11.40:873][  0]LogNet: Display: SteamNetDriver_0 bound to port 7777
[2018.10.08-15.11.40:884][  0]PacketHandlerLog: Loaded PacketHandler component: Engine.EngineHandlerComponentFactory (StatelessConnectHandlerComponent)
[2018.10.08-15.11.40:885][  0]LogNet: GameNetDriver SteamNetDriver_0 IpNetDriver listening on port 7777
[2018.10.08-15.11.41:337][  0]LogLevelActorContainer: Created LevelActorCluster (0) for /Game/Maps/TheFog_Map_Houses.TheFog_Map_Houses:PersistentLevel with 30 objects, 0 referenced clusters and 17 mutable objects.
[2018.10.08-15.11.41:342][  0]LogLevelActorContainer: Created LevelActorCluster (1) for /Game/Maps/TheFog_Map_Cars.TheFog_Map_Cars:PersistentLevel with 14 objects, 0 referenced clusters and 3 mutable objects.
[2018.10.08-15.11.41:352][  0]LogLevelActorContainer: Created LevelActorCluster (2) for /Game/Maps/TheFog_Map_EmptyBuildings.TheFog_Map_EmptyBuildings:PersistentLevel with 268 objects, 0 referenced clusters and 64 mutable objects.
[2018.10.08-15.11.41:421][  0]LogLevelActorContainer: Created LevelActorCluster (3) for /Game/Maps/TheFog_Map_Commerce.TheFog_Map_Commerce:PersistentLevel with 14 objects, 0 referenced clusters and 9 mutable objects.
[2018.10.08-15.11.41:454][  0]LogLevelActorContainer: Created LevelActorCluster (4) for /Game/Maps/TheFog_Map_Ocean.TheFog_Map_Ocean:PersistentLevel with 2 objects, 0 referenced clusters and 3 mutable objects.
[2018.10.08-15.11.41:525][  0]LogLevelActorContainer: Created LevelActorCluster (5) for /Game/Maps/TheFog_Map_PoliceStation.TheFog_Map_PoliceStation:PersistentLevel with 2 objects, 0 referenced clusters and 3 mutable objects.
[2018.10.08-15.11.41:534][  0]LogLevelActorContainer: Created LevelActorCluster (6) for /Game/Maps/TheFog_Map_Library.TheFog_Map_Library:PersistentLevel with 2 objects, 0 referenced clusters and 3 mutable objects.
[2018.10.08-15.11.41:714][  0]LogLevelActorContainer: Created LevelActorCluster (7) for /Game/Maps/TheFogTerrainTest_05.TheFogTerrainTest_05:PersistentLevel with 336 objects, 0 referenced clusters and 27 mutable objects.
[2018.10.08-15.11.41:723][  0]LogWorld: Bringing World /Game/Maps/TheFogTerrainTest_05.TheFogTerrainTest_05 up for play (max tick rate 30) at 2018.10.08-10.11.41
[2018.10.08-15.11.41:745][  0]LogNetVersion: ShooterGame 1.0.0.0, NetCL: 0, EngineNetVer: 2, GameNetVer: 0 (Checksum: 2729408564)
[2018.10.08-15.11.41:852][  0]LogWorld: Bringing up level for play took: 0.253961
[2018.10.08-15.11.41:865][  0]LogGameMode: Display: Match State Changed from EnteringMap to WaitingToStart
[2018.10.08-15.11.41:976][  0]LogGameState: Match State Changed from EnteringMap to WaitingToStart
[2018.10.08-15.11.41:988][  0]LogLoad: Took 18.567155 seconds to LoadMap(/Game/Maps/TheFogTerrainTest_05)
[2018.10.08-15.11.41:994][  0]LogOnline: GotoState: NewState: Playing
[2018.10.08-15.11.42:000][  0]LogLoad: (Engine Initialization) Total time: 27.71 seconds
[2018.10.08-15.11.42:247][  1]LogOnline: Verbose: STEAM: Initializing Steam game server
[2018.10.08-15.11.43:649][ 36]LogOnline: Verbose: STEAM: FOnlineAsyncEventSteamServerConnectedGS ServerId: Server [0x1402BB0C7268008]
[2018.10.08-15.11.43:867][ 43]LogOnline: Verbose: STEAM: FOnlineAsyncEventSteamServerPolicyResponseGS Secure: 1
[2018.10.08-15.11.43:937][ 45]LogOnline: Verbose: Async task 'FOnlineAsyncTaskSteamCreateServer bWasSuccessful: 1' succeeded in 2.141359 seconds
[2018.10.08-15.11.43:937][ 45]LogOnline: Verbose: STEAM: Server SteamP2P IP: 90120030802837512:7777
[2018.10.08-15.11.43:967][ 45]LogOnline: Verbose: STEAM: Server IP: 181.50.255.17:7777
[2018.10.08-15.11.43:967][ 45]LogOnline: Verbose: STEAM: Master Server Data (OWNINGID, 90120030802837512)
[2018.10.08-15.11.43:967][ 45]LogOnline: Verbose: STEAM: Master Server Data (OWNINGNAME, 90120030802837512)
[2018.10.08-15.11.43:968][ 45]LogOnline: Verbose: STEAM: Master Server Data (P2PADDR, 90120030802837512)
[2018.10.08-15.11.43:968][ 45]LogOnline: Verbose: STEAM: Master Server Data (P2PPORT, 7777)
[2018.10.08-15.11.43:969][ 45]LogOnline: Verbose: STEAM: Master Server Data (SESSIONFLAGS, 683)
[2018.10.08-15.11.43:969][ 45]LogOnline: Warning: STEAM: Server setting ,SESSIONFLAGS:683 overflows Steam SetGameTags call
[2018.10.08-15.11.43:970][ 45]LogOnline: Verbose: STEAM: Master Server Data (MATCHTIMEOUT_f, 120.000000)
[2018.10.08-15.11.43:970][ 45]LogOnline: Warning: STEAM: Server setting ,MATCHTIMEOUT_f:120.000000 overflows Steam SetGameTags call
[2018.10.08-15.11.43:971][ 45]LogOnline: Verbose: STEAM: SetGameTags(BUILDID:1380979588,OWNINGID:90120030802837512,OWNINGNAME:90120030802837512,P2PADDR:90120030802837512,P2PPORT:7777)
[2018.10.08-15.11.43:971][ 45]LogOnline: Verbose: STEAM: SetGameData(OWNINGID:90120030802837512,OWNINGNAME:90120030802837512,P2PADDR:90120030802837512,P2PPORT:7777,SESSIONFLAGS:683,MATCHTIMEOUT_f:120.000000)
[2018.10.08-15.11.43:984][ 45]LogOnline: Verbose: STEAM: Aux Server Data (OWNINGID, 90120030802837512)
[2018.10.08-15.11.43:992][ 45]LogOnline: Verbose: STEAM: Aux Server Data (OWNINGNAME, 90120030802837512)
[2018.10.08-15.11.43:992][ 45]LogOnline: Verbose: STEAM: Aux Server Data (P2PADDR, 90120030802837512)
[2018.10.08-15.11.43:992][ 45]LogOnline: Verbose: STEAM: Aux Server Data (P2PPORT, 7777)
[2018.10.08-15.11.43:993][ 45]LogOnline: Verbose: STEAM: Aux Server Data (SESSIONFLAGS, 683)
[2018.10.08-15.11.43:993][ 45]LogOnline: Verbose: STEAM: Aux Server Data (MATCHTIMEOUT_f, 120.000000)

Thanks in advance.

Did you make sure your App ID is not 420 (Space War)? I heard in another thread that Steam filters out 420 test ID from its listings.