Devices are "Unavailable"

I am using a Smarthings hub with Z-wave devices. Yesterday, I reset everything (removed, excluded and paired) and everything was working last night. This morning I saw that the hub was online but all the devices were “unavailable”. I started a Z-wave network repair about 3 hours ago and it is still ongoing.

Any comments/suggestions would be appreciated.


Reboot the hub again for safe measures.

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It shouldn’t take that long, no matter how many devices you have. How many do you have? Screen your event logs for bad devices…

Do you have by chance have CT100 thermostats? If so, check out this thread:


There seems to be a general bug, which SmartThings have acknowledged, which relates to z-wave and zigbee devices which are battery powered. Some have reported that z-wave plus battery powered devices are not affected.