Is a working, reliable ZWave network possible?

[OMR (Ole Morten Rønning)]

@rozpruwacz

Dead nodes. I have two nodes that are dead and I can’t remove them from the controller. When I use “Remove device from controller” I get error “Remove node 4 failed - node was not found”. How I can remove this node ?

You need to use a stick vendor utility.
If you got an Aeotech Gen5 stick you can follow what I did here.