Red Series VZW31-SN losing connection

I have about 35. VZW31-SN red series. Connected to home assistant via aeotec z stick 7. They work great but sometimes after a few days a random light out of the 35 might show disconnected/dead from home assistant. I can’t ping it either from zwave js ui.

If I go to the switch and just press the up button (or down button if it is on), it then instantly seems to reconnect to home assistant/zwave js.

Then everything might work again for another couple days and then another random light might do the same thing. Any ideas?

If I check the ping to the lights they are all pretty good. Normally all below 40ms. Occasionally some do seem to get interference and spike up to 500ms.

Just noting that I have this same issue. It resurfaces every few days.

Same here. Have about a dozen VZW31s and occasionally I’ll see warnings in my HA logs.

Logger: homeassistant.helpers.service
Source: helpers/
First occurred: 11:18:51 AM (1 occurrences)
Last logged: 11:18:51 AM

Referenced entities light.staircase are missing or not currently available

Same here. I am using Z-Wave JS UI, version: 3.7.2
Using Zooz 800 Series Long Range USB Controller

I did not do much of research, but I had MQTT enabled and I saw some errors in the Log related to MQQT. I disable it now. Same effect