mqtt_simple error -57

RE: mqtt_simple error -57

Heidi — Fri, 29 May 2020 08:54:55 GMT

That's good to hear! I will close this case then. :)

RE: mqtt_simple error -57

xuan0802 — Thu, 28 May 2020 15:42:34 GMT

Thank you for your response, luckily, I run the sample with the current master version of SDK and It works.

RE: mqtt_simple error -57

Heidi — Tue, 26 May 2020 10:45:29 GMT

Hi!

I am assigned to this case and have been looking into it.

I am not able to reproduce your issue, so I will need you to do some debugging.

Go into the mqtt_ping() function and add debugging messages like this (MQTT_TRC("Text");) to figure out which of the functions are returning error code -57. then add CONFIG_MQTT_LOG_LEVEL_DBG to the prj.conf file.

Are you trying to connect with LTE-M or NB-IoT?

Best regards,

Heidi

RE: mqtt_simple error -57

xuan0802 — Tue, 26 May 2020 03:10:23 GMT

Please, any help from Nordic Semi guys 😞