mqtt connect failed -61 , Error MQTT Connect -12

[Parth Sagar]

I am using nRF 9160 mqtt_simple example to connect to a custom mqtt broker address as shown below 

The following is the mqtt.fx application

 

I changed all the necessary files, prj.config , qemu conf , Kconfig

  

I also changed the username and password in client_init in main.c

Please help me connect to the mqtt, so that I can publish some data on the server

[Didrik Rokhaug]

Hi.

It looks like you are using TLS.

The mqtt_simple does not support TLS as is but requires some small modifications first.

Did you add TLS support to the sample?

If not, that should explain the connection refused error (I assume you have not changed the sample to use Newlib libc).

 You can find the necessary steps for adding TLS support in this guide: https://devzone.nordicsemi.com/nordic/cellular-iot-guides/b/software-and-protocols/posts/enabling-and-testing-tls-in-mqtt_5f00_simple

qemu conf , Kconfig

 It should not be necessary to modify those files. The qemu conf file is for when you build for simulated hardware, and the Kconfig file defines the sample-specific configuration options and their defaults.

Best regards,

Didrik