WinRT DatagramSocket does not receive data in store app but receive in console app

Windows Store app code:

_socket = new DatagramSocket();
_socket.MessageReceived += (sender, args) =>
                {
                    var dataReader = args.GetDataReader();
                    Console.WriteLine("Received {0} bytes from {1}:{2}",
                                      dataReader.UnconsumedBufferLength, args.RemoteAddress.DisplayName, args.RemotePort);
                };

await _socket.BindEndpointAsync(new HostName("192.168.0.24"), String.Empty);
LogMessage(String.Format("Socket bound on {0}:{1}", _socket.Information.LocalAddress.DisplayName, _socket.Information.LocalPort));

Same code but in a console app (followed method decrived here using winrt apis in desktop apps )

static void Main(string[] args)
{
    StartClient().Wait();
}

private async static Task StartClient()
{
    var socket = new DatagramSocket();
    socket.MessageReceived += (sender, args) =>
        {
            var dataReader = args.GetDataReader();
            Console.WriteLine("Received {0} bytes from {1}:{2}",
                              dataReader.UnconsumedBufferLength, args.RemoteAddress.DisplayName, args.RemotePort);
        };
    //await socket.BindServiceNameAsync(String.Empty);
    await socket.BindEndpointAsync(new HostName("192.168.0.24"), String.Empty);
    Console.WriteLine("Socket bound to {0}:{1}", socket.Information.LocalAddress.DisplayName, socket.Information.LocalPort);

    while (true)
    {
        await Task.Delay(300);
        await Task.Yield();
    }
}

These 2 apps just bind a socket to a my local ip:some port.

The sender app is a normal dotnet console app:

static void Main(string[] args)
{
    StartServer();
}

static void StartServer()
{
    var socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
    socket.Bind(new IPEndPoint(IPAddress.Any, 0));
    Console.WriteLine("Socket bound to {0}", socket.LocalEndPoint);

    Console.WriteLine("Enter port to connect to:");
    var line = Console.ReadLine();  
    var address = IPAddress.Parse("192.168.0.24");
    var port = int.Parse(line);
    var remoteEndPoint = new IPEndPoint(address, port);

    while (true)
    {
        var str = DateTime.Now.ToString();
        var buffer = Encoding.ASCII.GetBytes(str);
        var sentCount = socket.SendTo(buffer, remoteEndPoint);
        Console.WriteLine("Sent {0} bytes to {1}", sentCount, remoteEndPoint);

        Thread.Sleep(1000);
    }
}
    

this sender app asks for a port and sends data to my local ip:that port.

OK so the store app does not receive anything but the same code in console app does.

the store app has the following capabities set : internet (client), internet (client & server), private networks (client & server).

Any ideas of what I'm doing wrong ?

thanks!