Z-Wave // Raspberry Pi 3B - Unable to connect to Z-Wave controllers

Configuration Z-Wave
1

Hello,

I am new to the HomeAssistant community and not computer science savvy. I will try my best to be descriptive as possible about what I’m trying to accomplish and what my issues are:

System Info:

  • Home Assistant Core: 2025.2.5
  • Home Assistant OS: 14.2
  • Hardware: Raspberry Pi 3B // micro-SD
  • Zwave JS Add On: Version 0.10.0

Goal:
Install USB Z-stick controller to Raspberry Pi 3B and connect device via Zwave JS add-on.

  • Aeotec Gen5+
  • Zooz ZST39 LR

Add Zwave switches and outlets to Zwave network for HAOS integrated control and automation.

Issue / Troubleshooting Log:

  1. Installed Aeotec Gen5+ directly onto available Raspberry Pi 3B USB ports.
  2. Upon plugging in, lost connection to HA.
  3. Repeated trial and error 5 or 6 times until randomly, Aeotec Gen 5+ was successfully added. (Debugging nightmare… works but not sure why)
  4. Runs smoothly for a week
  5. Update Zwave JS add on from 0.9.0 to 0.10.0
  6. HA crashes, I end up back in the cycle of Aeotec Gen 5+ clearly being the source of the crash and unable to successfully reconnect.
  7. Buy Zooz ZST39 LR, thinking Aeotec Gen5+ was the issue.
  8. Install ZooZ ZST39 LR. Confirm HA sees the device. Add Zwave integration to try and connect. Connection fails. See log attached for more troubleshooting info:
  9. Repeat attempts to connect Aeotec and Zooz controllers using a dongle USB hub between Raspberry Pi 3B and Zstick.
  10. Same results

Found a thread suggesting that disabling the USB auto suspend on the Raspberry Pi 3 might solve this issue:

So I attempted to edit the “cmdline.txt” on the Raspberry Pi boot partition to add the following:

usbcore.autosuspend=-1

Quickly realized I was in over my head and unable to mount the boot partition. Decided it was time to seek help!

Let me know what else I can provide to make troubleshooting easier. Thank you in advance to anyone that takes time out of their day to help find an answer!


Home Assistant Core Log: Failed attempt to connect Zooz
Logger: homeassistant.components.zwave_js.config_flow
Source: components/zwave_js/config_flow.py:340
integration: Z-Wave (documentation, issues)
First occurred: 12:23:26 PM (9 occurrences)
Last logged: 12:24:06 PM

Failed to get Z-Wave JS add-on discovery info
2

Evidence Zooz hardware is recognized:

IMG_7917
IMG_79171206×1168 65.4 KB

3

IMG_7919
IMG_79191206×2190 160 KB

4

Z-Wave JS Log:

IMG_7924
IMG_7924804×4168 1.04 MB

5

Dumb question - Is the Pi’s power supply large enough to run both it and the USB device(s) plugged into it???

6

Great question. I’m using a 5V, 2.5A power supply. The z-stick devices appear to be lighting up their LED(s) without issue, but I suppose that doesn’t mean there could be intermittent power supply issues I’m not aware of.

No clue if 2.5A is enough

1 Like
7

Is there any other USB device connected to the Pi, such as a keyboard, mouse, or cooling fan???

8

No, no other USB devices. Still no luck reaching a solution on this unfortunately.

9

You need to have it on an usb extender cable.

10

Hello,
Did you ever find a solution I seem to be having the same problem?

Thanks