Hi folks. Yesterday 98% of the z-wave devices stop responding. I have a V3 hub and most of the z-wave devices are from Enbrighten Z-wave plus in-wall switches. There is no power failure in the house and I haven’t done anything to the system. The Zig-Bee devices work fine along with AC control. All the motion sensor also work fine. The light on front is green. I have tried reboot, power cycle the hub and repair Z-Wave network. I have deleted and reinstall the app. None of the method work. The app and the web interface show the hub and devices are online. However, when I press the button on the app, it just keep circling and nothing will happen. Sometime it will show the message “A network or server error occurred. Try again later.” The only Z-wave switches that work are the Enbrighten Z-wave fan switch. Anyone has any idea what else can I do to solve the issue. Thanks.
Update: I called the Samsung about the problem. After checking on their end, the technician said everything look ok on their end but will issued a ticket and escalate it to the advance team. She said she will get back to me 24-48 hours. Without notice, all the Z-Wave switches start to work this afternoon. I wonder if this might have to do with their server.
Update 1: All the Z-Waves Devices stop responding again. It only works for 3 hours and then it just stop working. This is so frustrating without knowing why it stop working.
Update 2: After a week of waiting and the case as escalated to Tier 3, I think Samsung support has given up. The usual suggestion of rebooting, deleting app, power on and off didn’t do anything. The next suggestion is that I am running out of memory, I need to either delete some devices or move them to a new hub. I believe Eric M is correct about the driver. I have over 90 Enbrighten Z-Wave switches which probably use the same drivers. I move 60 of them to Hubitat and they are functioning fine. Even clearing all those devices, the problem still remain. I am not sure what else to do beside keep moving devices to Hubitat until I have less than 20 devices that use the same drivers.
Update 3: Eric M is correct on the number of driver. I had over 300 devices on the hub. 70 of them use the same driver for the GE/Englighten Z-Wave Plus smart switches. After I move 52 devices to Hubitat, the rest of the devices start to work again. It’s been 3 days, no more delay or non response devices. I sure hope Samsung will fix this in the future.