   if (WiFi.status() == WL_CONNECTED) {
     if (!client.connected()) {
       if ( client.connect(MQTT::Connect((char*) clientName.c_str()).set_clean_session().set_keepalive(120))) {
-        client.publish(hellotopic, "hello from ESP8266 s06");
+        client.publish(hellotopic, "hello again from ESP8266 s06");
       }
     }
 

  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());


  clientName += "esp8266-";
  uint8_t mac[6];

  if (WiFi.status() == WL_CONNECTED) {
    if (!client.connected()) {
      if  ( client.connect(MQTT::Connect((char*) clientName.c_str()).set_clean_session().set_keepalive(120))) {
        client.publish(hellotopic, "hello again from ESP8266 s06");
      }
    }

