Description
Hello,
Recently I've noticed an issue where after approximately 2-2.5 hours of uptime, a KeepAlive period elapses and the code can't get a PINGRESP from the server and errors out:
7566.375: DEBUG - KeepAlive period elapsed - requesting a PINGRESP from the server...
7566.377: DEBUG - Sending PINGREQConnection error, reconnecting
PINGRESP not returned from broker.
7690.494: INFO - - iot_mqtt :: reconnect ::
7690.496: DEBUG - Attempting to reconnect with MQTT broker
7690.498: DEBUG - Attempting to establish MQTT connection...
7690.502: INFO - Establishing a SECURE SSL connection to iotc-----.azure-devices.net:8883
7691.429: DEBUG - Sending CONNECT to broker...
7691.434: DEBUG - Fixed Header: bytearray(b'\x10\xa7\x02\x00') Variable Header: bytearray(b'\x04MQTT\x04\xc2\x00x')
7691.445: DEBUG - Receiving CONNACK packet from broker
Traceback (most recent call last):
File "code.py", line 232, in
File "adafruit_azureiot/iotcentral_device.py", line 193, in reconnect
File "adafruit_azureiot/iot_mqtt.py", line 439, in reconnect
File "adafruit_minimqtt/adafruit_minimqtt.py", line 770, in reconnect
File "adafruit_minimqtt/adafruit_minimqtt.py", line 523, in connect
MMQTTException: Connection Refused - Unauthorized
There is a try and except in the loop:
except (ValueError, RuntimeError) as e:
print("Connection error, reconnecting\n", str(e))
wifi.radio.enabled = False
wifi.radio.enabled = True
wifi.radio.connect(secrets["ssid"], secrets["password"])
device.reconnect()
continue
But it doesn't seem to trigger a reconnection. Have tried with CP 7.3 and CP 8 on an ESP32-S2 Feather TFT and a QT Py ESP32-S2 both with my own project code and the example library code for IoT Central.