I'm using this library to port over a MQTT connection to my C++ application. The service provider gave me a python script that uses paho.mqtt.python for the MQTT connection; they use a secure ...

Updating to version 1.6.7 of mosquito makes no difference, nor does using the full path of the .conf file. The same problem occurs with a fresh install of the paho.mqtt.c and pho.mqtt.cpp repositories ...