I setup a new C-8 Pro today (migration from my C-8), but did not migrate any Z-Wave. The old hub did not have any Z-Wave devices to begin with. Platform version 2.3.9.143.
All of my Zigbee devices migrated and are working fine. I am unable to pair any Z-Wave device. I have tried Aeotec Range Extender 7, Aeotec Range extender 6, Somfy Z-Wave to RTS, and a Zooz relay. All Z-wave devices were not paired, and even factory reset. I took my Aeotec range extenders to my friend's home and they paired just fine in another network. Unpaired them and factory reset them again, still unable to pair anything on the Hubitat. This is very frustrating because my old C-8 hub failed to pair any Z-Wave and the main reason why I bought the pro. I reset the Z-Wave radio on the old hub before the backup/restore migration.
On the new hub Z-wave is enabled and set to the right region. There are no devices listed. Devices were within 3 feet of the hub while trying to pair, so they were in range.
That's frustrating to say the least... Can you successfully exclude a device? A successful exclude of a new or fact-reset device should give a "Unknown device excluded" message.
Even for a brand-new device, I always do an exclude before trying an include -- that confirms the device and hub are talking OK, and makes sure the device is in good shape to include.
Other folks here smarter on ZW will have more ideas -- hang in there.
Seems as though they are not talking. I used an Aeotec Range Extender 6 (rainbow flashing) so I know it was not paired to anything. Tried to exclude and it flashed green for a while then solid red for a few seconds. No errors or other message from the hub.
And we have a winner....
That is your problem with both hubs.
Also, do not use a USB-C block and C to C cord. That often does not work because the port on the hub does not negotiate for power. You will want to use a USB-A block and A to C cord (like what comes with the hub).
If the uav power doest resolve your issue, I would check the antenna as on of mine was broken cause issues. A good test would be to try and pair a zwave unit <10cm from the hub as when my unit was having pairing issues and before I had found the antenna broken it would achieve successful pairing.
P.s I use poe to power my old c8 (replaced with c8pro) which is only handling zwave devices upstairs and after 3 weeks seems to be stable (GS748TPS Netgear POE Switch 28 zwave device, 11 poe)
There are known issues with PoE power so if you have any other zwave problems try a normal supply. There have also been certain PoE splitters that work fine so maybe you have one of the good ones.
Understood. I tried the in box PSU, and still had problems, so I started looking at other things.
This particular splitter seems to be ok. I compared it to the inbox PSU with a power meter just in case it was on the margin. Also made sure my PoE port could supply more than 12w.
There's a wonderful post with information about the POE issue here. The reason for the problems with some POE supplies is laid out quite expertly. Worth a few moments of your time...
Voltages on that splitter must be stable enough to keep zwave happy at least. It’s working for now anyway and if it goes downhill OP knows the first thing to check.
I originally had an inexpensive PoE splitter on my C8 hub. I don't use Z-Wave for much, but I did pair an old Z-Wave switch to see if the PoE splitter was causing issues. I found that I could pair the Z-Wave switch without issue, and even control it reasonably well. However, every now and then, manually turning it on and off from the hub repeatedly, I could discern a delay. Now this is with just one Z-Wave node, in the same room as the HE hub. I switched to the USB Power Supply that came with the hub, and those seemingly random delays disappeared. I then purchased one of the PoE splitters tested by @dennypage, hooked it up, and ran the same test. Everything worked properly.
Thus, I am a believer that there is a difference in PoE splitter quality, voltage/current stability, etc... I really do not believe it is an RF interference issue being caused by the PoE splitter, as I have a bunch of the inexpensive ones still in very close proximity to the hub. Those splitters are not causing any issues.
I'm not talking about radiated RF interference from the splitter. I'm talking about power supply noise EMI coupling internally with the RF system. We have folks at work that measure that, so I'll ask them if they have an easy way to evaluate one of the splitters.
