Dependency Injection in .NET CORE 2.1 class with constructor's parameters (SignalR)

I have troubles to understand dependecy injection with ASP.NET CORE. I don't understand how can I inject a signalR context in a class that I have made.

In particular this class is responsable of calling a client specific method when an event occour. But I have trouble to have an instance of the hub context in this class, and I'm not able to call the client methods.

public class ServerStatus
{
   private readonly IHubContext<MyHub, ITypedHubClient> _hubContext;

   private int idserver;
   private string des;
   private string ipserver;

   private int attemptfailded = 0;

    public ServerStatus(IHubContext<MyHub, ITypedHubClient> hubContext, int id, string description, string ip)
    {
        this.idserver = id;
        this.des = description;
        this.ipserver = ip;
        _hubContext = hubContext;

    }

   ...

   public async Task SendMessageToClients()
   {       
        await _hubContext.Clients.All.BroadcastMessage("Server", 
        "ServerDown");
   }

}

I have done some research in this forum, and I have discovered that I can use a FactoryPattern to instantiate this classes with a hubcontext and so I have made this factory class:

public class ServerStatusFactory
{
    private readonly IHubContext<MyHub, ITypedHubClient> _hubContext;

    public ServerStatusFactory(IHubContext<MyHub, ITypedHubClient> hubContext)
    {
        _hubContext = hubContext;
    }

    public ServerStatus GetServerStatus(int id, string description, string ip)
    {
        return new ServerStatus(_hubContext, id, description, ip);
    }
}

Now I'm not able to instatiate this class factory beacause I need to pass the hubcontext to the constructor of the factory class. So I thought that this class need to added to services of my app, like so:

services.AddScoped<ServerStatusFactory>();

But here I'm not sure this is the correct way and then how to use it to create new instances of ServerStatus object with the hubcontext in other classes that I have made.

Please can someone help me, by telling me how can I create and use this Factory class to instantiate my objects inside another class when I need them.

Thanks in advance.

EDIT

So, from my further research i discovered that there is a procedure to build up a service provider. See post: https://stackoverflow.com/a/45756192/10506397

Therefore, I create in a my custom methods in one of my class this peace of code:

public static class MyClass
{

    public static List<ServerStatus> servers = new List<ServerStatus>();

    public static void initializeServers()
    {
        var serviceCollection = new ServiceCollection();
        serviceCollection.AddSingleton<IServerStatusFactory, ServerStatusFactory>(factory => new ServerStatusFactory(/* what arguments???? */));

        // create service provider
        var serviceProvider = serviceCollection.BuildServiceProvider();

        ServerStatusFactory serverfactory = serviceProvider.GetService<ServerStatusFactory>();

        ServerStatus s = serverfactory.GetServerStatus(/* my params */);

        servers.Add(s);
    }
}

But now I get an error when I execute the code above because serverfactory is null. I think this happen because I'm not passing the Hub in the correct way to the ServerStatusFactory.

I also have tried to add in the initializeServers:

serviceCollection.AddSingleton<IHubContext<MyHub, ITypedHubClient>>();

but I get this exception, when I buildServiceProvider:

System.ArgumentException
 HResult=0x80070057
 Message=Cannot instantiate implementation type 
 'Microsoft.AspNetCore.SignalR.IHubContext`2

This is my ConfigureServices:

 // This method gets called by the runtime. Use this method to add services to the container.
    public void ConfigureServices(IServiceCollection services)
    {
       ...
        services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);

        services.AddSignalR();

        services.AddSingleton<IConfiguration>(Configuration);


        services.AddSingleton<IServerStatusFactory, ServerStatusFactory>( factory => new ServerStatusFactory(/* what arguments???? */);

        MyClass.initializeServers();
}