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Feature•Jun 3, 2026

AWS IoT Core adds new logs to troubleshoot connectivity and authentication

AWS IoT CoreAWS · Internet of Things

AWS IoT Core now provides two new Amazon CloudWatch Log event types that help you troubleshoot device connectivity issues and authentication errors across your Internet of Things (IoT) fleet.

The new Ping log event type is emitted when devices send MQTT Keep-alive messages, and it enables you to identify connections or devices that were unable to keep the connection alive. The new Connection.AuthNError log event type records rejected connection attempts due to authentication failure, along with detailed error codes that tell you what went wrong, so you can resolve credential and certificate issues faster.

To get started, configure event-level logging in your AWS IoT Core settings with your desired log level and Amazon CloudWatch log group destination, then opt into these new event types. The two new event types are available in all AWS Regions where AWS IoT Core is available. To learn more, see AWS IoT log entries in the AWS IoT Core developer guide.

Read the original announcement↗

More from AWS IoT Core

All AWS IoT Core updates →

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  4. AWS IoT Core adds APIs for MQTT connection management

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    AWS IoT Core•Feature•May 28, 2026

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    AWS IoT Core•Feature•May 28, 2026