Gent081 Updated ((link))

Do not wait for a production incident caused by an outdated TLS stack or a memory leak that was patched six months ago. Download the binary, run the migration tool, set up a shadow instance, and plan your cutover.

Cause: MQTT certificate expiration or firewall port blocking (port 8883). Fix: Generate a new client certificate via your cloud provider’s IoT registry. Check that your network switch allows outbound secured MQTT traffic. gent081 updated