Server Hardware for openplotter?

[flybob]

I have a problem where I simply cannot get 1-wire to function again. I had it running the whole summer but some updates down the line it's now gone.

Symptoms:
There are no sensors available in the MCS app in openolotter, or in MCS SignalK plugin. Tried reinstalling both. There is an occupied i2c adress on 17 or 18. Inside the 1w bus folder there are two master folders and occasionally slave adresses but apparently wrong adresses as they mostly are 6b-0000000...

I've checked the sensors on the MCS board, still good connection there. There are three sensors in parallel and none working.

Any ideas on how to troubleshoot further?