A problem with connection to a dedicated server

Hi everyone.
I’am using RyroNZ MasterServer plugin as Master Server.
I have successfully created a server on demand and everything looks fine (MasterServer console shows me “Registered TestServer on [IP]:[port]”) but when I try to connect to it, OutputLog shows me “SetActiveLevelCollection attempted to use an out of date NetDriver: GameNetDriver”. Also I am not able to find new server sessions via Session->FindSessions.
For connection I have been using: console command : open [Ip]:[port] or ClientTravel() - the same result(
I’m not sure what is common way to do it.

I’ve overrode RegisterServer function in GameSession class to create session on dedicated server immediately after creation.
I’ve checked - port is opened.
I’ve made research but nothing can help.
Code in GameSession::RegisterServer()

SessionSettings = MakeShareable(new FOnlineSessionSettings());

	SessionSettings->bIsLANMatch = true;
	SessionSettings->bIsDedicated = true;
	SessionSettings->bUsesPresence = false;
	SessionSettings->NumPublicConnections = 4;
	SessionSettings->NumPrivateConnections = 0;
	SessionSettings->bAllowInvites = true;
	SessionSettings->bAllowJoinInProgress = true;
	SessionSettings->bShouldAdvertise = true;
	SessionSettings->bAllowJoinViaPresence = false;
	SessionSettings->bAllowJoinViaPresenceFriendsOnly = false;

	SessionSettings->Set(SETTING_MAPNAME, FString("LevelMap"), EOnlineDataAdvertisementType::ViaOnlineService);
	SessionSettings->Set(SETTING_GAMEMODE, FString("NWTGameMode"), EOnlineDataAdvertisementType::ViaOnlineService);

	Sessions->CreateSession(0, GameSessionName, *SessionSettings);

There are a lot another code so just ask if need.
Aprepitant your suggestions))

We have problem with NetDriver as well. Every time you go to another server it goes for minutes:

But we are not using any plugins. Just OpenIP (another server is on different port basically)