Hello everyone, I need the simplicity of MQTT for a chat app. But I also I need the option to be able send file to a specific user online. Can you give an idea what is the best way to achieve this? I have tried using the example (Network + AsyncStreams + B4XSerializator) transferring file is working but I 'm having trouble reconnecting to other user(max 5) to send message.(always disconnecting). I appreciate any help.