Hi everyone,
I'm hoping someone here can help me troubleshoot a major issue I'm experiencing with my Z-Wave network in Home Assistant. I've been running a stable Z-Wave network using the JS Z-Wave integration for nearly two years, but recently, my Zooz switches and dimmers have started to fail, and I can't seem to resolve the issue.
System Details
- Z-Wave Stick: Zooz USB 700 Series Z-Wave Plus S2 Stick (ZST10 700)
-- Firmware: Updated from 7.17.2 to 7.18.3 (issue persists on both versions)
-- Stick placed on a USB extension - Integration: Z-Wave JS (Standard installation method via Home Assistant)
- Devices: Zooz Zen71 and Zen72 light switches/dimmers. Zooz sensors ZSE43, ZSE40
The Issue
- Devices drop from the network and show as “dead” in Z-Wave JS.
- When attempting to re-add these devices, they appear as "unknown" nodes or fail to include.
- The issue seems isolated to switches and dimmers—sensors remain operational.
- Manual control at the device still works.
Steps I’ve Taken
- USB Stick Adjustments:
• Moved the Z-Wave stick to a USB extension cable and away from interference sources.
• Rebuilt network routes multiple times after making this adjustment.
2.** Network Healing & Rebuilds:**
• Ran the "Rebuild Network Routes" operation at different stages of the troubleshooting with no changes.
-
Exclude, Reset, and Reinclude Devices:
• Followed Zooz’s instructions to:
‣ Force-remove devices using Z-Wave JS.
‣ Perform a factory reset on switches/dimmers.
‣ Attempt to reinclude them.
• This consistently fails—devices either time out or reappear as "unknown" nodes. -
Firmware Updates:
• Updated the USB stick firmware to 7.18.3 from 7.17.2.
• All devices on latest firmware. -
Manual Testing:
• Confirmed that manual control at the devices still works. -
Other Notes:
• Sensors in the network remain fully operational, and no new devices have been added recently.
• The issue started suddenly and has progressively worsened.