For Azure IoT Hub troubleshooting, the following sections list common tasks and problems while connecting to IoT Hub:
Exception Log
To help troubleshoot issues the Exceptions Log will often times provide more information on connection Issues. The Exception Log messages will be in the Azure Component.
Verify that deviceWISE node can reach Azure
Using the Diagnostics Panel in Administration verify if your node reachs your Azure Service or IoT Edge Gateway. In the Diagnostics Panel enter the Service Endpoint/Hostname for your Azure IoT Hub/DPS/IoT Edge Device and click ping to see if the Hostname can be resolved. Also check if you can connect to the service/device using the TCP Connect button and the port number for your selected protocol.
The deviceWISE Gateway connects and disconnects repeatedly to Azure
Ensure that the device ID being used on the gateway is not used by anyone else. Azure will only allow one connection at a time with the same device ID.