Can't Connect with Yeelight wifi color bulb

Yeelight LED Bulb (Color)
#1

Written simple code in Android to connect with Yeelight wifi color bulb but unable to connect with bulb, no idea why. Here is my code.

Note : Device is simple pojo class, you can remove it.

I’m getting timeout exception

try {
Device device = null;
byte[] sendData;
byte[] receiveData = new byte[1024];
DatagramSocket clientSocket=null;

    /* Create the search request */
            String NL = "\r\n";
            StringBuilder mSearch = new StringBuilder();
            mSearch.append("M-SEARCH * HTTP/1.1").append(NL);
            mSearch.append("HOST: 239.255.255.250:1982").append(NL);
            mSearch.append("MAN: \"ssdp:discover\"").append(NL);
            mSearch.append("ST: wifi_bulb").append(NL);
            try {

    /* Send the request */
                sendData = mSearch.toString().getBytes();
                DatagramPacket sendPacket = new DatagramPacket(
                        sendData, sendData.length, InetAddress.getByName("239.255.255.250"), 1982);
                clientSocket = new DatagramSocket();
                clientSocket.setSoTimeout(20000);
                clientSocket.send(sendPacket);

    /* Receive one response */

                DatagramPacket receivePacket = new DatagramPacket(receiveData, receiveData.length);
                clientSocket.receive(receivePacket);
                device = Device.parse(receivePacket);
                System.out.println("URL "+device.getDescriptionUrl());
            }
            catch (Exception e) {
                e.printStackTrace();
            }

            clientSocket.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }