fixed issue when signing was enabled

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libraries/MySensors/examples/MQTTClientGateway/MQTTClientGateway.ino

@@ -205,13 +205,19 @@ void loop()
 {
   if (!client.connected())
   {
+    boolean ret;
 #ifdef MQTT_AUTH_REQUIRED
     strcpy(user, MQTT_USER);
     strcpy(pwd, MQTT_PWD);
-    client.connect(connID, user,pwd);
+    ret = client.connect(connID, user,pwd);
 #else
-    client.connect(connID);
+    ret = client.connect(connID);
 #endif
+    if (ret) {
+      Serial.println("Connected to MQTT broker");
+    } else {
+      Serial.println("Connection to MQTT broker failed");
+    }
     client.subscribe(mqttTopicMask);
   }
   client.loop();

libraries/MySensors/examples/MQTTClientGateway/MyMQTTClient.h

@@ -29,8 +29,8 @@ version 2 as published by the Free Software Foundation.
 
 
 #define MQTT_AUTH_REQUIRED                      // if your broker has anonymous access uncomment
-#define MQTT_USER "username"                    // username on MQTT broker
-#define MQTT_PWD  "pwd"                         // password for MQTT username above
+#define MQTT_USER "user"                    // username on MQTT broker
+#define MQTT_PWD  "pwd"                        // password for MQTT username above
 #define MQTT_CONN_ID "MySensors"               // passed as id to the MQTT broker