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Why Does the MQTT Connection on ESP32-Pico Frequently Disconnect with Error errno=113?

Posted by Daniel kalu_0000
11:51 am
21/11/2024

Hii while developing an loT application with ESP32-Pico to monitor environmental conditions and send data to an MQTT broker. The MQTT connection is set to QoS 1 with a
60-second keep-alive interval. However, the connection frequently drops after a few minutes, requiring the device to reconnect, leading to data transmission delays.
Error Message: E (10234)
MQTT_CLIENT: Error transport connect failed, errno=113
The error was discovered during continuous data transmission tests, where the ESP32-Pico repeatedly lost its connection to the MQTT broker, displaying the error on the serial monitor.
Any idea why the MQTT connection on the ESP32-Pico frequently disconnects?