cannot perform connection between a client and server on two different computers

void Server(void)
    {

	cout<<"Server-Side\n";
	cout<<"===========\n\n";
	CkSocket listenSslSocket;

    //  Any string automatically begins a fully-functional 30-day trial.
    bool success;
	success = listenSslSocket.UnlockComponent("**********************");
    if (success != true) {
        printf("%s\n",listenSslSocket.lastErrorText());
        return;
    }

    //  An SSL server needs a digital certificate.  This example loads it from a PFX file.

    //  Create an instance of a certificate store object, load a PFX file,
    //  locate the certificate we need, and use it.
    //  (a PFX file may contain more than one certificate.)
    CkCertStore certStore;
    //  The 1st argument is the filename, the 2nd arg is the
    //  PFX file's password:
	success = certStore.LoadPfxFile("/Users/rania/My Documents/DIGITAL CERTIFICATES/MServer.pfx","***********");
	if (success != true) {
        printf("%s\n",certStore.lastErrorText());
        return;
    }

    //  Find the certificate to be used for SSL:
	CkCert *cert = 0;
	cert = certStore.FindCertBySubject("MServer");
    if (cert == 0 ) {
        printf("%s\n",certStore.lastErrorText());
        return;
    }

    //  Use the certificate:
    success = listenSslSocket.InitSslServer(*cert);
    if (success != true) {
        delete cert;
        printf("%s\n",listenSslSocket.lastErrorText());
        return;
    }

    delete cert;

    //Bind and listen on a port:
         long myPort;
	myPort = 5555;
    //Allow for a max of 5 queued connect requests.
         long backLog;
         backLog = 5;
    success = listenSslSocket.BindAndListen(myPort,backLog);
         if (success != true) {
           printf("%s\n",listenSslSocket.lastErrorText());
           return;
         }

    //  If accepting an SSL/TLS connection, the SSL handshake is part of the connection
    //  establishment process. This involves a few back-and-forth messages between the
    //  client and server to establish algorithms and a shared key to create the secure
    //  channel. The sending and receiving of these messages are governed by the
    //  MaxReadIdleMs and MaxSendIdleMs properties. If these properties are set to 0
    //  (and this is the default unless changed by your application), then the
    //  AcceptNextConnection can hang indefinitely during the SSL handshake process.
    //  Make sure these properties are set to appropriate valuescalling AcceptNextConnection.

    //  Set a 10 second max for waiting to read/write.  This is for the SSL/TLS handshake establishment.
	listenSslSocket.put_MaxReadIdleMs(10000);
	listenSslSocket.put_MaxSendIdleMs(10000);

    //  Accept a single client connection and establish the secure SSL/TLS channel:
       CkSocket *clientSock = 0;
       long maxWaitMillisec;
       maxWaitMillisec = 20000;
       clientSock = listenSslSocket.AcceptNextConnection(maxWaitMillisec);
       if (clientSock == 0 ) {
           printf("%s\n",listenSslSocket.lastErrorText());
           return;
          }

    //  The client (in this example) is going to send a "Hello Server! -EOM-"
    //  message.  Read it:
	const char * receivedMsg;
         receivedMsg = clientSock->receiveUntilMatch("-EOM-");
         if (receivedMsg == 0 ) {
            printf("%s\n",clientSock->lastErrorText());
            return;
             }

         printf("%s\n",receivedMsg);

    //Send a "Hello Client! -EOM-" message:
        success = clientSock->SendString("Hello Client! -EOM-");
        if (success != true) {
           printf("%s\n",clientSock->lastErrorText());
           return;
	}

    //Close the connection with the client
    //Wait a max of 20 seconds (20000 millsec)
        clientSock->Close(20000);

        delete clientSock;

	}

<pre lang="cs">void Client(void)
    {
    CkSocket socket;

    bool success;
    success = socket.UnlockComponent("*************************");
    if (success != true) {
        printf("%s\n",socket.lastErrorText());
        return;
    }

    bool ssl;
    ssl = true;
    long maxWaitMillisec;
    maxWaitMillisec = 20000;

    //  The SSL server hostname may be an IP address, a domain name,
    //  or "localhost".  You'll need to change this:
    const char * sslServerHost;
    sslServerHost = "188.249.158.247";
    long sslServerPort;
    sslServerPort = 5555;

    //  Connect to the SSL server:
    success = socket.Connect(sslServerHost,sslServerPort,ssl,maxWaitMillisec);
    if (success != true) {
        printf("%s\n",socket.lastErrorText());
        return;
    }

    //  Set maximum timeouts for reading an writing (in millisec)
    socket.put_MaxReadIdleMs(20000);
    socket.put_MaxSendIdleMs(20000);

    //  Send a "Hello Server! -EOM-" message:
    success = socket.SendString("Hello Server! -EOM-");
    if (success != true) {
        printf("%s\n",socket.lastErrorText());
        return;
    }

    //  The server (in this example) is going to send a "Hello Client! -EOM-"
    //  message.  Read it:
    const char * receivedMsg;
    receivedMsg = socket.receiveUntilMatch("-EOM-");
    if (receivedMsg == 0 ) {
        printf("%s\n",socket.lastErrorText());
        return;
    }

    //  Close the connection with the server
    //  Wait a max of 20 seconds (20000 millsec)
    socket.Close(20000);

    printf("%s\n",receivedMsg);
    }