Hi all,

I got lots of MQTT errors after changing the port offset in carbon.xml and 
restart the server with IoTS alpha release. The new agent could not connect to 
the IoTS with mqtt using the new offset port.

The errors were:

1. [2016-10-18 17:11:29,630] ERROR - OAuth2BasedMQTTAuthenticator Error on 
connecting with the validation endpoint.
org.apache.axis2.AxisFault: Connection refused
        at org.apache.axis2.AxisFault.makeFault(AxisFault.java:430)

2. [2016-10-18 17:11:29,684]  INFO - ProtocolProcessor Lost connection with 
client paho952169391265634
[2016-10-18 17:11:29,684]  WARN - ProtocolProcessor MQTTAuthorizationSubject 
for client ID paho952169391265634 is not removed since the entry does not exist
[2016-10-18 17:11:29,690] ERROR - MQTTAdapterListener MQTT Exception occurred 
when starting listener
Bad user name or password (4)
        at 
org.eclipse.paho.client.mqttv3.internal.ExceptionHelper.createMqttException(ExceptionHelper.java:28)
        at 
org.eclipse.paho.client.mqttv3.internal.ClientState.notifyReceivedAck(ClientState.java:885)
        at 
org.eclipse.paho.client.mqttv3.internal.CommsReceiver.run(CommsReceiver.java:118)
        at java.lang.Thread.run(Thread.java:745)

Anyone knows what happens?

------
Zhanwen Zhou (Jason)
+86 13922218435
zhanwen.z...@smartcloudex.com
Guangzhou Smart Cloudex Technology Co., Ltd.
Business: IOT, API Management

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