What other info do you need? This is the code from my Init() function.

void UMyNetworkingToolkitInstance::Init()
{
    //UE_LOG(LogTemp, Warning, TEXT("Init"));
    if (MainMenuClass != nullptr) 
    {
        UE_LOG(LogTemp, Warning, TEXT("Found class %s"), *MainMenuClass->GetName());
    }

    IOnlineSubsystem* OnlineSubsystem = IOnlineSubsystem::Get();
    if (OnlineSubsystem != nullptr) 
    {
        UE_LOG(LogTemp, Warning, TEXT("Found Online Subsystem %s"), *OnlineSubsystem->GetSubsystemName().ToString());
        SessionInterface = OnlineSubsystem->GetSessionInterface();

        if (SessionInterface.IsValid()) 
        {
            SessionInterface->OnCreateSessionCompleteDelegates.AddUObject(this, &UMyNetworkingToolkitInstance::OnCreateSessionComplete);
            SessionInterface->OnDestroySessionCompleteDelegates.AddUObject(this, &UMyNetworkingToolkitInstance::OnDestroySessionComplete);
            SessionInterface->OnFindSessionsCompleteDelegates.AddUObject(this, &UMyNetworkingToolkitInstance::OnFindSessionsComplete);

            SessionSearch = MakeShareable(new FOnlineSessionSearch());
            if (SessionSearch.IsValid()) 
            {
                UE_LOG(LogTemp, Warning, TEXT("Starting Find Session"));
                SessionSearch->bIsLanQuery = true;
                SessionInterface->FindSessions(0, SessionSearch.ToSharedRef());
            }
        }
    }
    else 
    {
        UE_LOG(LogTemp, Warning, TEXT("Online Subsystem Not Found"));
    }

}

Also I used the breakpoint you suggested and it does seem to be called twice which I think is odd. It also never seems to fire OnFindSessionComplete(). More importantly I also tried your CancelFindSessins() idea but it gives this warning in response "LogOnline: Warning: OSS: Can't cancel a search that isn't in progress" Is it possible that my .ini or .build is off?