ThingSpeak

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MQTT Error Messages

If you incorrectly configure your client to connect to the ThingSpeak™ MQTT broker, your connection request is rejected.

  • If you set the CleanSession flag to 0 on your MQTT client, any connection request to the ThingSpeak MQTT broker is rejected with a CONNACK status of "0x05 Connection Refused, not authorized".

  • If you set the Will flag to non-zero values on your MQTT client, any connection request to the ThingSpeak MQTT broker is rejected with a CONNACK status of "0x05 Connection Refused, not authorized".

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