MQTTis a widely used ISO standard (ISO/IEC PRF 20922) publish-subscribe-based messaging protocol. MQTT has many implementations such as Mosquitto or HiveMQ. For a good overview, see Wikipedia’scomparison of MQTT brokers. MQTT is mainly used in Internet of Things scenarios (like connected cars...
I can connect perfectly to the broker through “MQTT Explorer”, indicating the same parameters [host, port, username, password, protocol=”ws://”, and Server certificate (CA)] and checking the options “Validate certificate”=true and “Encryption (tls)” = true. I live the piece of the...