Hello @Paul-Thornton , Glad to here that, it's very important to me to have this possibility with Pycom. All my devices should be connected to Azure. I've done some researching and found out that your MQTT libs are sending bytes that Azure doesn't understand. Short description of this is on the link: https://www.youtube.com/watch?v=pRqpKZ7mO1s

@modellhaus I suggest you two things for help, the first is to modify your post and please enclose your code in correct code balise ( </> tool in line above )to help reading . The second thing is to post the error message and line number where it happen to help analysis.

@pturcotte You should got exception from some sending code and then you can catch it and reconnect to the network https://forum.pycom.io/post/14510