Since moving to PG3x both in Polisy and eisy, I get random reconnect notices from all my node servers at the same time. I looked at one of the node server logs and there were no indications that anything happened at that time to cause the reconnect notice. Happens maybe once a day. Interval seems random. Since there is nothing in the log, maybe this is a bug in the logic that triggers the notices?
Thanks for the details. That really does help.
The node servers are verified every 5 minutes so that's probably not related, just that it is what you'll see in the log when PG3 is mostly idle.
But the reconnecting to MQTT broker is related. That's saying that the network connection between the MQTT broker and PG3 dropped for some reason and it had to reconnect. Most likely , that also means that the network connection between each node server and the MQTT broker also dropped an