Server Socket cannot accepts client. (C# UWP Async Socket Programming) - server

Question

i made a Async Server Socket Code using C# Socket.
Although i wrote a code, then test to Console Environment,
it was working, but i tested that code at UWP.
but, it was not working. cannot accepts client.
Bind, Listen, Accept there are all no error, but this socket code cannot accepts client!
how can i solve me?? please help me..
private Socket m_ServerSocket;
private List<Socket> m_ClientSocket;
private int m_iPort = 1123;
private int m_iClients = 8;
private int m_iBufferSize = 128;
public bool Open(int IN_iPort, int IN_iClients, int IN_iBufferSize)
{
try
{
m_iPort = IN_iPort;
m_iClients = IN_iClients;
m_iBufferSize = IN_iBufferSize;
m_ClientSocket = new List<Socket>();
m_ServerSocket = new Socket(
AddressFamily.InterNetwork,
SocketType.Stream,
ProtocolType.Tcp);
IPEndPoint ipep = new IPEndPoint(IPAddress.Any, m_iPort);
m_ServerSocket.Bind(ipep);
m_ServerSocket.Listen(m_iClients);
SocketAsyncEventArgs args = new SocketAsyncEventArgs();
args.Completed
+= new EventHandler<SocketAsyncEventArgs>(Accept_Completed);
m_ServerSocket.AcceptAsync(args);
}
catch (Exception e)
{
return false;
}
m_bIsOpen = true;
return true;
}
private void Accept_Completed(object sender, SocketAsyncEventArgs e)
{
Socket ClientSocket = e.AcceptSocket;
m_ClientSocket.Add(ClientSocket);
if (m_ClientSocket != null)
{
SocketAsyncEventArgs args = new SocketAsyncEventArgs();
byte[] szData = new byte[m_iBufferSize];
args.SetBuffer(szData, 0, m_iBufferSize);
args.UserToken = m_ClientSocket;
args.Completed
+= new EventHandler<SocketAsyncEventArgs>(Receive_Completed);
ClientSocket.ReceiveAsync(args);
}
e.AcceptSocket = null;
m_ServerSocket.AcceptAsync(e);
}

Answer 1

I have check your code, there seems no issue existing in your code. Please check if you have checked Internet(Clent&Server)option in your project appxmanifest. For more detail you could refer to Sockets official documentation.