Hello All,
Hope you are all well,
Here we have an issue with MQTT where all I`m wanting at the moment is a input out put of a random number generator between two devices.
Device 1 (Receiving)


Device 2 (Sending) Rasp Pi.
As you can see topics are the same, client ID is different , both the certificates and keys are seperate to each device, when I load the MQTT on Pi it connects straight away then disconnects- nothing is sent in the process. Meanwhile Device 1 is firmly connected.
Any ideas anyone? Currently clueless as to whats wrong?
Thank you all!