IoT device is sending telemetry, but nothing is being received? 'az iot hub monitor-events -n {iothub name}' has no output

Question

I am new to using Azure IoT Hub, and my device was connected and able to send telemetry about two weeks ago. At that time, I could view the messages using

az iot hub monitor-events -n {iothub_name}

az iot hub monitor-events -n {iothub_name}

Answer 1

Hello @Alex Fang,

it's hard to say what is happening here.

Perhaps the device registration is not valid anymore?

Or perhaps the device cannot connect to the cloud anymore?

Because the device logic is likely not producing data anymore, please debug your client software first.

Also consider two other tools to investigate individual incoming messages of the IoT Hub:

1. Visual studio code extension for IoT Hub
2. Azure IoT Explorer

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