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  1. Paho MQTT "Unsupported callback API version" error

    Feb 12, 2024 · client = mqtt_client.Client(mqtt_client.CallbackAPIVersion.VERSION1, client_id) This will configure the library to use the v1 callback API (as used with older versions of the …

  2. HAOS: Adding my own MQTT broker will not connect

    Jan 22, 2025 · Edited to add: I can also establish that connections ARE occurring between HAOS and my MQTT broker. Logs on the MQTT side indicate that the Paho MQTT client from HAOS …

  3. Node-red beginners issue. Connection failed to broker: mqtt://

    Jun 24, 2023 · Probably not. I have not installed anything extra apart from Node Red. After your reply I tried to install HiveMQ (and upgrade my Java 8 to Java 11). I still didn´t manage to …

  4. ssl - How to get paho mqtt client to trust a self-signed certificate ...

    Sep 25, 2024 · So my question is, how can I get the paho mqtt library to work with a self-signed certificate, or are there different solutions I can use to achieve a secured mqtt communication?

  5. Paho-MQTT client disconnect with code 16 and cannot connect …

    Jun 20, 2023 · If I restart the container with the mqtt client, it starts working, but after a few hours it disconnects again (with code 16) with the possibility of reconnecting. I didn't …

  6. Mosquitto MQTT: "Connection was lost" error when publishing a …

    May 5, 2025 · I am trying to test MQTT functionality and have installed Eclipse Mosquitto on my workstation. To subscribe to a topic, I use the following command: "C:\\Program …

  7. How to keep reestablishing connection to an mqtt broker with …

    Aug 13, 2024 · With the following code I am able to force the mqtt client to keep reestablishing the connection to the message broker even if it is not up yet. I would like to get it does via the use …

  8. c# - MQTT Client (MQTTnet) Not Successfully Subscribing to …

    Feb 23, 2025 · I'm building a .NET service that connects to an EMQX broker using MQTTnet. While the client connects to EMQX, when I test sending messages through MQTTX (MQTT …

  9. MQTT C++ client - Stack Overflow

    Apr 22, 2020 · The Paho C++ library does support MQTT v5, and is thread safe. You can publish and subscribe from multiple threads with a single client connection. Some of the Eclipse web …

  10. OPC UA protocol vs MQTT protocol - Stack Overflow

    Apr 27, 2015 · 20 MQTT is a broker based messaging protocol where the payload encoding and content is completely application specific. Therefore it would be useful if you want to send …