https://devzone.nordicsemi.com/f/nordic-q-a/62711/mqtt-lst-sampleHello, Does anyone has an example of MQTT LST application for nrf9160. I&#39;ve tried to use the MQTT_Simple sample with LST. I&#39;ve add &quot;CONFIG_MQTT_LIB_TLS =y&quot; change the port to &quot;test.mosquitto.org:8883&quot; and add the client settings. But I don&#39;ten-USTelligent Community 13Thu, 18 Jun 2020 13:03:59 GMThttps://devzone.nordicsemi.com/thread/255781?ContentTypeID=1Thu, 18 Jun 2020 13:03:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ae75ed5e-fce8-4348-861e-101d623d63c4H&#229;kon Alseth<p>Hi,</p> <p>&nbsp;</p> <p>In prj.conf, you should add these in addition to the #if defined(CONFIG_MQTT_LIB_TLS) logic you have:</p> <p><pre class="ui-code" data-mode="text">CONFIG_MQTT_BROKER_PORT=8883 CONFIG_MQTT_LIB_TLS=y</pre></p> <p>&nbsp;</p> <p>As shown on the test server description:</p> <p><a href="https://test.mosquitto.org/">https://test.mosquitto.org/</a></p> <p>&nbsp;</p> <p>You do not need a password + username when accessing on port 8883, only TLS. For connection to port 8884, a keypair is required, per their instruction.</p> <p>To write these, it is very similar how its done using nrf_cloud certificates.</p> <p>&nbsp;</p> <p>Kind regards,</p> <p>Håkon</p><div style="clear:both;"></div>