Maybe this hivemind can help out debugging Z-wave network. I recently installed two devices on the network (currently up to 15) with two repeaters, light switches, wall plugs, thermostat and couple battery operated motion sensors.

Before latest addition everything worked almost smoothly, every now and then the motion sensor messages didn’t go trough, but it was rare enough that I didn’t pay too much attention to it as I have plenty of other stuff to do than tinker with occasional hiccup on home automation.

However for the last 48 hours (or so) the system has become unreliable enough that I need to do something about it. I tried to debug the messages a bit, but I’m not too famliar on what to look for, however these messages are frequent and they seem to be a symptom of an issue:

Dropping message with invalid payload

[Node 020] received S2 nonce without an active transaction, not sure what to do with it

Failed to execute controller command after 1/3 attempts. Scheduling next try in 100 ms.

Specially the ‘invalid payload’ message appears constantly on the logs. I’d quess that some of the devices is malfunctioning, but other option is that there’s somehow a loop on the network (I did attempt to reconfigure the whole thing, didn’t change much) or that my RaZberry 7 pro is faulty.

Could someone give a hint on how to proceed and verify which the case might be?

Edit: I’m running Home Assistant OS on a raspberry pi 3.