Arduino Wifi shield not communicated

My project is Arduino RC car controlling with android for that i bought Arduino Uno r3 and arduino wifi shield http://arduino.cc/en/Main/ArduinoWiFiShield ,problem is - wifiShield not listening the client and can’t receive datas,I dont know how to solve the problem,and cannot setup conection between devices…( =( =( =(

Arduino Code:

char ssid[] = "***";          //  your network SSID (name) 
char pass[] = "***";   // your network password
int status = WL_IDLE_STATUS;

WiFiServer server(1991);
//String readString;

boolean alreadyConnected = false; // whether or not the client was connected previously

void setup() {
  // initialize serial:
  Serial.begin(9600);
  Serial.println("Attempting to connect to WPA network...");
  Serial.print("SSID: ");
  Serial.println(ssid);

  status = WiFi.begin(ssid, pass);
  if ( status != WL_CONNECTED) { 
    Serial.println("Couldn't get a wifi connection");
    while(true);
  } 
  else {
    server.begin();
    server.status();
    Serial.print("Connected to wifi. My address:");
    IPAddress myAddress = WiFi.localIP();
    IPAddress inetAddress=WiFi.gatewayIP();
     Serial.println( myAddress);
   
    Serial.println("Inet: ");
    Serial.println(inetAddress);
  }
 }

void loop() {
  // wait for a new client:
  WiFiClient client = server.available();
  // when the client sends the first byte, say hello:
  if (client) {
    if (!alreadyConnected) {
      // clead out the input buffer:
      client.flush();    
      Serial.println("We have a new client");
      client.println("Hello, client!"); 
      alreadyConnected = true;
    } 

    if (client.available() > 0) {
      // read the bytes incoming from the client:
      char thisChar = client.read();
      // echo the bytes back to the client:
      server.write(thisChar);
      // echo the bytes to the server as well:
      Serial.write(thisChar);
    }
  }
}

I’m a newbie
thanks for your help in advance…

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