MQTT ERROR SEND BUFFER IS FULL

  • I have some shelly motion sensors that publish messages and the messages reach the subscriber correctly, but sometimes the messages do not arrive and the sensors debug log shows this error: MQTT_ERROR_ SEND_ BUFFER_ IS_ FULL.

    Why does this error appear?

  • This would mean you are getting/adding sensor events faster than the rate at which they can be removed from the buffer (because they have been sent via WifI)? Is the environment vibration-free and do you have a good WiFi connection for the devices?