Hubs been acting a bit crazy lately - Err 120: Z-Wave send timed out

There have been several reports recently of weird Z wave behavior. The first thing would be to contact support, because they can see some things from their side that we can’t.

Yours sounds like a more extensive problem, since the presence sensors are zigbee and Arlo camera is Wi-Fi/LAN integration.

So I’m not really sure what to say. I’m sure it’s very frustrating. :disappointed_relieved: But I would start with support, they may be able to see something going on.

Meanwhile, here are some of the other reliability issue reports from this month, in case any of them seem to match yours.