C-7 suddenly stopped controlling z-wave devices

jtp10181 · July 30, 2025, 3:13am

Need confirmation / screenshots on all of this

Z-Wave Issues

For partial or total loss of Z-Wave control (radio seems dead), before doing anything else please shut down the hub from settings and unplug for 30 seconds, then re-plug to boot back up. This will allow the radios to fully power down and restart. A regular reboot only restarts the platform and not the radio hardware.

For C-7 Hub, make sure you do not have a Z-Wave firmware update: [Instructions HERE]
The Update Firmware button is hidden when the Z-Wave firmware is already up to date.
Use http://YOUR.HUB.IP/hub/zwaveVersion to check your version info.

Official Hubitat Documentation Resources:
Hubitat Docs: Z-Wave Details
Hubitat Docs: How to Troubleshoot Z-Wave

What info to provide for troubleshooting assistance:

How is Hub being powered? Supplied power block or other (explain)

PoE power (with splitter) is known to cause major Z-Wave issues on the C-8 hub.

See this post for detailed write up on PoE testing: PoE and the C8

Provide screenshots showing entire Z-Wave details Page

Hub should be running for at least 12hrs without reboot, and state how long in your post (you can find uptime on Logs > Device Stats)

Click the Refresh Statistics button, wait 10 seconds, then Refresh the page

Provide screenshot of Z-Wave Topology Map (red/blue squares)