Connection to MQTT fails as ping response is not received about amazon-freertos HOT 5 CLOSED

(1) Yes, at this time the application does need to reestablish the connection after a connection error.
(2) Note that ping/ICMP is blocked by the AWS gateway (so if you tried ‘ping YOUR_ENDPOINT’, you would not expect a response due to security settings ). Is this what you are observing?
(3) Please take a look at prvSetupConnection in aws_mqtt_agent.c to debug where the connection is failing. In other words, is it failing in the TCP connect, the TLS negotation, or the MQTT connection?

Are you using the Windows Simulator or a device? If it is not a credential/policy issue, does the problem go away if you increase value of mqttconfigKEEP_ALIVE_TIMEOUT_TICKS (located in aws_mqtt_agent_config.h) for greater tolerance of network conditions?

To debug further, could you share your configPRINTF outputs? Note that there is a debug log config in aws_mqtt_config.h (mqttconfigENABLE_DEBUG_LOGS) for more information. You could also try to enable logging (https://docs.aws.amazon.com/iot/latest/developerguide/monitoring_overview.html#iot-using-cloudtrail) to view API calls.

from amazon-freertos.

I am running this on LPC54018 based device,the issue happens when the device has been running for some time (15 minutes to 2 hours) & sending ping request and receiving the ping response continuously as keep alive mechanism. Suddenly after some time the device stop receiving the ping responses and MQQT connection timeout. So, i suspect it is related to security settings.

I will try to increase the mqttconfigKEEP_ALIVE_TIMEOUT_TICKS and see if it improves the condition.

from amazon-freertos.

Hi @shwetachauhan , did the increase in mqttconfigKEEP_ALIVE_TIMEOUT_TICKS improve the condition?

from amazon-freertos.

I'm closing this issue, since it looks like almost an year old and there is no response from the poster. Please open another issue if the problem still exists.

from amazon-freertos.

Hi @shwetachauhan , did the increase in mqttconfigKEEP_ALIVE_TIMEOUT_TICKS improve the condition?

Yes it did , thanks for the suggestion

from amazon-freertos.