MQTT Transmission Connection Lost Error

[TChenier]

Also, be aware the AWS IoT broker has a limit on message size. If Transmission publishes a birth with a large tag map that exceeds this limit, IoT Core will drop the connection.

MQTT Transmission tag limit

This is more likely due to AWS IoT Core's message size limitation of 128 KB. When a client publishes a message that exceeds the limit, IoT Core will drop the connection. https://aws.amazon.com/iot-core/pricing/#:~:text=You%20can%20send%20and%20receive,metered%20in%205%20KB%20increments. [image]