//----------------------------------MULTICAST----------------------------------------
        fwh.WriteLog(aClass, "Launch multicast thread");

        Thread myThready = new Thread(new Runnable() {
            public void run() //Этот метод будет выполняться в побочном потоке
            {
                String ip = "";
                WifiManager wifiManager = (WifiManager) mContext.getApplicationContext().getSystemService(WIFI_SERVICE);
                ip = Formatter.formatIpAddress(wifiManager.getConnectionInfo().getIpAddress());

                if (ip.equals("0.0.0.0")) {
                    ip = "192.168.43.1";
                }
                fwh.WriteLog(aClass, "launch server on:" + ip);

                final String INET_ADDR = "224.0.0.3";
                final int PORT = 8888;
                InetAddress addr = null;
                try {
                    addr = InetAddress.getByName(INET_ADDR);
                } catch (UnknownHostException e) {
                    e.printStackTrace();
                    fwh.WriteLog(aClass, e.getMessage());

                }
                Timer timer = new Timer();
                final InetAddress finalAddr = addr;
                final String finalIp = ip;
                timer.scheduleAtFixedRate(new TimerTask() {

                    @Override
                    public void run() {
                        try (DatagramSocket serverSocket = new DatagramSocket()) {

                            String msg = finalIp;
                            DatagramPacket msgPacket = new DatagramPacket(msg.getBytes(),
                                    msg.getBytes().length, finalAddr, PORT);
                            try {
                                serverSocket.send(msgPacket);
                            } catch (IOException e) {
                                e.printStackTrace();
                                fwh.WriteLog(aClass, "Sending multicast msg error: " + e.getMessage());
                            }


                        } catch (IOException ex) {
                            ex.printStackTrace();
                            fwh.WriteLog(aClass, "Join to multicast finish: " + ex.getMessage());
                        }
                    }
                }, 0, 1000);
            }
        });
        myThready.start();
        //--------------------------------------------------------------------------------------------