Connection to HiveMQ Cloud not working

[matdon]

Hi everyone,

has somebody here experience with the HiveMQ Cloud broker? (https://www.hivemq.com/mqtt-cloud-broker/)
Its a nice and free (up to 100 devices) online MQTT broker.

Attempting to connect to the broker fails:

No MQTT connection can be established.

As code I'm using the bare minimum sketch from the documentation:

`#include <Homie.h>

void setup() {
Serial.begin(115200);
Serial << endl << endl;

Homie_setFirmware("bare-minimum", "1.0.0"); // The underscore is not a typo! See Magic bytes
Homie.setup();
}

void loop() {
Homie.loop();
}`

I'm using PlatformIO.
Already tried with the Homie 3.0.1 release as well as the latest revision from the develop branch.

Here is the JSON config I'm using:

The platformio.ini looks a follows:

HiveMQ requires a SSL/TLS connection at port 8883.

Was somebody able to establish a connection to a HiveMQ Cloud broker and can provide some hints?

Thank you in advance!

Best regrads,
Matthias