Indy TCP Hole Punching, 10061 Connection refused

Question

I'm developing an P2P application which need enable a TCP Hole Punching.

For the Rendezvous Server I'm using a simple application (running in a public IP) with a TIdTCPServer with SSL Enabled, this Application maintains the clients connections and returns the public endpoints (AContext.Binding.PeerIP and AContext.Binding.PeerPort) of the connected clients.

The Client (TIdTCPClient) connections to the server have the property ReuseSocket set to rsTrue.

This is how the clients are connected to the Rendezvous Server.

  TCPClientMain.ConnectTimeout := 500;
  TCPClientMain.Host := RendezvousServerIP;
  TCPClientMain.Port := RendezvousServerPort;
  TCPClientMain.UseNagle := false;
  TCPClientMain.ReuseSocket := rsTrue;

  OpenSSLHandlerMain.UseNagle := false;
  OpenSSLHandlerMain.ReuseSocket := rsTrue;

  TCPClientMain.IOHandler := OpenSSLHandlerMain;
  TCPClientMain.Connect();

The issue happens when I try to create a new connection directly to the public end point of the Client A from B.

TCP Hole Punching code

var
  LTCPClient : TIdTCPClient;
  LOpenSSLHandle : TIdSSLIOHandlerSocketOpenSSL;
begin

  //Init the SSL for the  new connection
  LOpenSSLHandle :=  TIdSSLIOHandlerSocketOpenSSL.Create(nil);
  LOpenSSLHandle.SSLOptions.Method := TIdSSLVersion.sslvTLSv1_2;
  LOpenSSLHandle.SSLOptions.SSLVersions := [sslvTLSv1_2];
  LOpenSSLHandle.UseNagle := False;

  LTCPClient := TIdTCPClient.Create(nil);
  LTCPClient.ConnectTimeout := 5000;
  //Set the data of the public end point of the Client A
  LTCPClient.Host := ARemoteIPAddress; //This is the public ip of the Client A
  LTCPClient.Port := ARemotePort; //This is the port of the public endpoint of the client A
  LTCPClient.ReuseSocket := rsTrue;
  LTCPClient.IOHandler := LOpenSSLHandle;

  LTCPClient.Connect(); //This raises a EIdSocketError exception

I'm getting Socket Error # 10061 Connection refused.

So, the question is how I can establish the new connection to the public endpoint of the Client without raise that exception?