AWS IoT Core Introduces Detailed Logs for Connectivity and Authentication Issues

AWS IoT Core enhanced troubleshooting with two new CloudWatch log event types targeting MQTT keep-alive and authentication failure diagnostics across IoT devices.

By Maya Bennett · Editorial pseudonym · 2026-06-05 · 1 min read

AI-ASSISTED REPORTING · RETROSPECTIVE ARCHIVE

Retrospective edition: 2026-06-05. Source published: 2026-06-03. Added to this archive: 2026-11-03. This briefing was prepared later from the linked announcement; it was not published on this website on the historical edition date.

To aid in managing IoT device fleets, AWS IoT Core introduced two Amazon CloudWatch log event types: 'Ping' for tracking MQTT Keep-alive message activity, and 'Connection.AuthNError' for capturing rejected connections due to authentication failures with specific error codes. These additions help identify devices unable to maintain connections or credentials causing failures.

Configurability through AWS IoT Core settings allows users to specify log levels and destinations, with availability across all regions supporting AWS IoT Core. While AWS provides the telemetry data, effectiveness in diverse operational environments depends on end-user integration and monitoring practices, not independently assessed here.

Source & further reading

AWS IoT Core adds new logs to troubleshoot connectivity and authentication ↗

Source published 2026-06-03. This report was prepared with AI assistance from the linked primary-source material. Claims and limitations should be checked against the original announcement or research.