Xamarin中的TCP客户端无法连接

如何解决Xamarin中的TCP客户端无法连接

我有一个客户端无法连接到服务器的问题。它们在同一端口上。我有正确的IP地址。我用C＃编写了一个类似的程序，它可以连接。

我该如何解决？

我有一个名为“ IpAd”的条目，我在其中输入IP地址

private void Connect_Clicked(object sender,EventArgs e)
{
    string[] ip = new string[3];
    ip = IpAd.Text.Split('.');
    for (int i = 0; i<=3;i++)
    {
        if (int.Parse(ip[i]) > 255 || int.Parse(ip[i]) < 0 || IpAd.Text == "")
        {
            Connected.Text = "Incorrect Ip";
            Connected.TextColor = Color.Red;
            return;
        }
    }
    try
    {
        _sender = new TcpClient(IpAd.Text.ToString(),11000);

        Connected.Text = "Client Online";
        Connected.TextColor = Color.Green;
        
        stream = _sender.GetStream();

        Connected.Text = "Connected";
        Connected.TextColor = Color.Green;
        Can_send = true;
    }
    catch (SocketException ee)
    {
        Console.WriteLine("SocketException: {0}",ee);
        Connected.Text = "Socket Not Connected";
        Connected.TextColor = Color.Red;
    }
    catch
    {
        Connected.Text = "Not Connected";
        Connected.TextColor = Color.Red;
    }
}