Hi @droidblast - The most likely issue might be because you are using broker.hivemq.com - that is a broker for testing and trying things out. Uptime isn’t guaranteed. It might even be cold restarted every night (I’m not sure).
I would first switch to HiveMQ Cloud which is built for production environments. It’s free for the first 100 devices.
Then if it still disconnects every 24 hours, then you can pursue the other avenues.
Best,
Peter Giacomo Lombardo