For completeness I’ll repost here my account of my fight to reset the Z-Wave network.
Last night I set about trying to reset all my Z-Wave devices (and the Z-Stick). I tried to maintain the order in which I added the nodes, to avoid having to reconfigure the devices in openHab. With many devices, there’s very little or no feedback to tell you whether the reset has worked, so you’re pretty much flying blind there. Then I tried to add them all again, fully expecting problems. And there were problems, lots of them.
The SIR-321 RF Countdown Timer was the first device I tried to add, since it was node 2. I can’t really say what was wrong, or what worked. I tried resetting it, adding it and excluding it numerous times until I finally managed to get it included, as node 3. One thing I learned: once a node is used, it can’t be “reused” until you do a “replace” in the control software. The new node IDs start from the maximum ID used at any point since you reset the controller.
The Aeotec multisensors, Qubino smart meter and Fibaro sockets didn’t really give me problems. They were straightforward to reset and include.
The Fibaro flood sensors are a little trickier since they’re battery-powered. Sometimes they get included in an incoherent state where certain channels never update, or you can never modify configuration parameters because every time you click save they are immediately replaced by the defaults (no matter how many times you press the TMP button you never see “pending” and the new values are never saved). In a few cases I had to reset the devices again and add them again.
The single Düwi socket I still had did not have a reset procedure. They apparently hadn’t thought of it. It was always a horribly unreliable device, turning itself off at random like the other two I used to have. Good riddance. I already had a Fibaro as replacement.
The three TKB sockets were a headache. The official reset procedure from the manual (Press on/off button 3 times within 1.5 seconds; within 5 seconds, press on/off button again for 1 second until LED is off) doesn’t work. What works is doing the exclude procedure, even if it’s a new network where the sockets were never added. I was ready to throw them all away until I found the post explaining this.
The nightmare: the Fibaro FGS 222 relay switches. The official procedure is to reset by holding the B button for 3 sec. after connecting the mains voltage to the switch (implying that you’ve cut the power previously). During all the tests I did, once one of them seemed to get included without even doing the include procedure after cutting the power, but since I didn’t know which of the two it was, I removed it again. After that I failed utterly to include either of them. I tried every reset procedure I found online, including pressing the B button for 3 seconds, then cutting the power, then pressing it again (maybe?). The consensus seems to be that you need to cut the power, then press the B button as the power is restored (i.e. it requires two people). I can’t get anything to work. Since I also failed to attach physical switches to the relays to operate them manually when I have problems like this, I’m seriously considering throwing them away and buying something else. But I don’t know what. They control the heating and cooling, so this is no trivial matter. Fortunately I still have a gas boiler I can switch to in the cold weather.
All the rest I managed to add, most of them with the same nodes.