Fibaro Smart Implant dropping our

I’m having a hard time with FGBS-222 dropping out a few hours after powering up.
The only way to get it reporting as useal is by unplugging it and replug it.

I used this up until mid-summer last year when there were some trouble with Z-Wave JS causing everything to stop working and I had to revert back to a old version of Home Assistant, keeping that until fall when the bugs were fixed. All but this it seems.
I’ve tried to disconnect all temperature sensors and have them soldered in place. I also tried to use another DC adapter and varied the voltage.

Any ideas of what might cause this to loose all temperature probes?

I use this with as many temperature sensors as permitted (5) to monitor my household heating system and alert if the efficiency goes down (gas or cooling leak).
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