I've been having the same S2 bootstrapping error. I upgraded 2 hubs to C8-Pros. The first hub had the error, I wasn't able to switch to Z-Wave JS to try adding there, that was fixed (post here): Z-Wave JS Error Installation Invalid
I finally went and reset the Z-Wave radio and reinstalled all my z-wave devices. Interesting results:
1 - I reset the radio, added one or two of my legacy mesh devices, tried to add my Z-Wave LR SmartStart device (Zooz Zen14 800LR series outdoor double plug), and received the bootstrap error.
2 - I reset the radio again, added the Zen14LR SmartStart device 1st, then added legacy mesh devices, SmartStart works. SmartStart has continued to work since on that hub with no problems.
I am migrating a 2nd hub to C8-pro with the same SmartStart bootstrapping error. This one is remote and has too many Z-wave devices to reinstall each one, at least initially. I have the new hub local and have been working through it.
1 - received bootstrap error
2 - switched to Z-WaveJS (no installation error this time)
3 - Z-waveJS smartstart installation fails (same as post here: SmartStart Manager for Z-Wave / 168
I've tried resetting the z-wave radio, switched back to legacy and JS a couple times, also trying a legacy S2 installation without SmartStart to see if I can get the error to clear. My JS experience so far hasn't been solid enough to make the permanent switch, but if I can get it to work for SmartStart LR installation, then switch back, that would be a huge bonus. My LR experience on my first hub has been phenomenal. Several LR devices / plugs across my yard with solid connectivity for Christmas Displays!
Any additional thoughts/experience welcome!
