Error using IOT

Development Tools Cloud IoT
1

The following errors occur on a IOT program that and turned on and off LED from Dashboard. The connection disconnects and disconnects continuously. Program worked properly till errors occurred.

ArduinoIoTCloudTCP::handle_ConnectMqttBroker could not connect to mqtts-sa.iot.arduino.cc:8883
ArduinoIoTCloudTCP::handle_ConnectMqttBroker 4 connection attempt at tick time 42816
ArduinoIoTCloudTCP::handle_ConnectMqttBroker could not connect to mqtts-sa.iot.arduino.cc:8883
ArduinoIoTCloudTCP::handle_ConnectMqttBroker 5 connection attempt at tick time 75926

Check your thing configuration, and press the reset button on your board.
ArduinoIoTCloudTCP::handle_SubscribeMqttTopics could not subscribe to
/a/t/a45aead5-4550-4288-b662-61c55dfaef63/e/i

3

as your log says,it's a communnication error, tcp on port 8883
check your firewall to see if the required ports are open and Try to open required ports to let the arduino / editor communicate both ways with the cloud

mqtts-sa.iot.arduino.cc on port 8883 (for the board) -> connected object

wss.iot.arduino.cc on port 8443 (for the dashboard) -> cloud & interface
hope this helps

4

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