MS WINDOWS UWP APP | Port forwarding with SSH.NET does not work!

Hello, everybody,

when i try to create a port forwarding with the following code it does not work (no error, nothing).
So I would be happy if someone had an idea what goes wrong in my code.

Here now my code:

        using (var client = new SshClient(conInfo))
        {

            client.KeepAliveInterval = new TimeSpan(0, 0, 30);
            client.ConnectionInfo.Timeout = new TimeSpan(0, 0, 20);
            client.Connect();
            ForwardedPortRemote port = new ForwardedPortRemote(8888, "127.0.0.1", 443);
            client.AddForwardedPort(port);
            
            port.Start();

            var dialog = new MessageDialog("Wenn Sie fertig sind mit der Konfiguration schließen Sie bitte diesen Message Dialog!");
            await dialog.ShowAsync();

            port.Stop();
            client.Disconnect();
        }

I'm glad for any help.

Greetings
Sven

Start by reproducing the reported behavior in a Microsoft Windows UWP app using the shown SshClient and ForwardedPortRemote code. Read the ForwardedPortRemote and port lifecycle entry points implicated by the example, then determine why no forwarding occurs; the issue does not name a repository file or test, so completion requires a confirmed cause and a verified forwarding result.