Connection refuse, Unknown reason

[jhpark555]

There is reason code 5 error. What is this error?

[MQTT INFO] Connected to server 52.5.238.97:1883 [MQTT INFO] Sending MQTT CONNECT message, type: 1, id: 0000 [MQTT INFO] Reading MQTT CONNECT response message [MQTT WARN] Connection refuse, reason code: 5 [MQTT INFO] Connecting to server 52.5.238.97:1883,23303 [MQTT INFO] Connected! [MQTT INFO] Connected to server 52.5.238.97:1883 [MQTT INFO] Sending MQTT CONNECT message, type: 1, id: 0000 [MQTT INFO] Reading MQTT CONNECT response message [MQTT WARN] Connection refuse, reason code: 5 [MQTT INFO] Connecting to server 52.5.238.97:1883,23303 [MQTT INFO] Connected! [MQTT INFO] Connected to server 52.5.238.97:1883 [MQTT INFO] Sending MQTT CONNECT message, type: 1, id: 0000 [MQTT INFO] Reading MQTT CONNECT response message [MQTT WARN] Connection refuse, reason code: 5 [MQTT INFO] Connecting to server 52.5.238.97:1883,23303 [MQTT INFO] Connected! [MQTT INFO] Connected to server 52.5.238.97:1883 [MQTT INFO] Sending MQTT CONNECT message, type: 1, id: 0000 [MQTT INFO] Reading MQTT CONNECT response message [MQTT WARN] Connection refuse, reason code: 5 [MQTT INFO] Connecting to server 52.5.238.97:1883,23303 [MQTT INFO] Connected! [MQTT INFO] Connected to server 52.5.238.97:1883 [MQTT INFO] Sending MQTT CONNECT message, type: 1, id: 0000 [MQTT INFO] Reading MQTT CONNECT response message [MQTT WARN] Connection refuse, reason code: 5 [MQTT INFO] Connecting to server 52.5.238.97:1883,23303 [MQTT INFO] Connected! [MQTT INFO] Connected to server 52.5.238.97:1883 [MQTT INFO] Sending MQTT CONNECT message, type: 1, id: 0000 [MQTT INFO] Reading MQTT CONNECT response message [MQTT WARN] Connection refuse, reason code: 5 [MQTT INFO] Connecting to server 52.5.238.97:1883,23303 [MQTT INFO] Connected! [MQTT INFO] Connected to server 52.5.238.97:1883 [MQTT INFO] Sending MQTT CONNECT message, type: 1, id: 0000 [MQTT INFO] Reading MQTT CONNECT response message [MQTT WARN] Connection refuse, reason code: 5 [MQTT INFO] Connecting to server 52.5.238.97:1883,23303 [MQTT INFO] Connected! [MQTT INFO] Connected to server 52.5.238.97:1883 [MQTT INFO] Sending MQTT CONNECT message, type: 1, id: 0000 [MQTT INFO] Reading MQTT CONNECT response message [MQTT WARN] Connection refuse, reason code: 5 [MQTT INFO] Connecting to server 52.5.238.97:1883,23303 [MQTT INFO] Connected! [MQTT INFO] Connected to server 52.5.238.97:1883 [MQTT INFO] Sending MQTT CONNECT message, type: 1, id: 0000 [MQTT INFO] Reading MQTT CONNECT response message [MQTT WARN] Connection refuse, reason code: 5 [MQTT INFO] Connecting to server 52.5.238.97:1883,23303 [MQTT INFO] Connected! [MQTT INFO] Connected to server 52.5.238.97:1883 [MQTT INFO] Sending MQTT CONNECT message, type: 1, id: 0000 [MQTT INFO] Reading MQTT CONNECT response message [MQTT WARN] Connection refuse, reason code: 5 [MQTT INFO] Connecting to server 52.5.238.97:1883,23303 [MQTT INFO] Connected! [MQTT INFO] Connected to server 52.5.238.97:1883 [MQTT INFO] Sending MQTT CONNECT message, type: 1, id: 0000 [MQTT INFO] Reading MQTT CONNECT response message [MQTT WARN] Connection refuse, reason code: 5 [MQTT INFO] Connecting to server 52.5.238.97:1883,23303 [MQTT INFO] Connected! [MQTT INFO] Connected to server 52.5.238.97:1883 [MQTT INFO] Sending MQTT CONNECT message, type: 1, id: 0000 [MQTT INFO] Reading MQTT CONNECT response message [MQTT WARN] Connection refuse, reason code: 5 [MQTT INFO] Connecting to server 52.5.238.97:1883,23303 [MQTT INFO] Connected! [MQTT INFO] Connected to server 52.5.238.97:1883 [MQTT INFO] Sending MQTT CONNECT message, type: 1, id: 0000 [MQTT INFO] Reading MQTT CONNECT response message [MQTT WARN] Connection refuse, reason code: 5

[jhpark555]

It was an topic name error. It shouldn't start the name with '/'.