OH3 MQTT system broker - protocol error, 'Server closed connection without DISCONNECT'

[rossko57]

@dk.mailbox

I do not know why the MQTT binding comes with that system broker concept

OH3 MQTT Problem

Good. You don’t need any System Broker Thing unless you use the embedded broker app (Moquette) - and that’s been removed from OH3 for support reasons. You just want an ordinary broker Thing pointing to your pre-existing MQTT broker, Mosquitto or whatever you use.