There are many common errors when troubleshooting, you might look already the following external articles:

• https://learn.microsoft.com/en-us/azure/iot-edge/troubleshoot-common-errors

Check registration configuration

To check the device ID or other parameter of your configuration, e.g. that the connection string corresponds to the one shown on the interface you can run the following command on your edge device.

sudo grep connection_string /etc/aziot/config.toml