Hello.
I used MQTT broker on port 1885 (not default 1883)
I used node “mqtt-connect” (https://xod.io/libs/bradzilla84/pubsub-mqtt/mqtt-connect/?utm_source=ide&utm_campaign=docs&utm_medium=inspector) and example for but not connect to mqtt server.
Please, check node (not “port” in code)
i am not used Username and password for mqtt.
Smartphone work without problem with my MQTT server.
—mqtt.xodball (6.6 KB)