Zooz Zen24 dimmer switches - failed S2 bootstrapping

[erktrek]

Did you my recent thread? There is some good info provided by @Tony.

Whats up with Z-Wave these days? Devices can't seem to find their neighbors

I have to say the migration over to the C-7 from 2 C-4's has been "difficult". All my devices are now paired and most are working. At my clients the C-7 is running and doing a pretty good job as well but there are still some devices issues. It is confounding to try and understand how and why Z-Wave devices decide to repeat. Often switches of the same model/firmware right next to each other or separated by a few feet will have wildly different routes back to the Hub and wildly different throughp…