ZwaveJS cannot connect to ZwaveJSUI server

I setup ZwaveJSUI and added my devices. Now Im trying to setup ZwaveJS to import devices to HA. I add ZwaveJS integration and unselect install supervisor and then get the websocket screen. No matter what I type no connection. I am running Home Assistant on a Yellow device. As far as i understand its HAOS not in docker or anything. I SSH to the yellow, tried docker ps just to make sure it says docker command not found. So as i understand it should be running locally. Please help I’m going nuts.

Did you install it as the standard Add-on under HAOS on your HA Yellow?

If the answer is yes, the Z-wave Integration should have this WebSocket connection:

Note that I mean exactly the same

Using what SSH server? What port? If you are ssh-ing to port 22 (SSH Default) then you are likely connecting to the Advanced SSH add-on, and not the Yellow HAOS. You have to enable SSH on port 22222 to get to the underlying OS, it is not enabled by default.

If you truly get to the OS then the docker ps command will work as Home Assistant itself runs as a docker container.

Example:

PS C:\Users\marti> ssh -p 22222 root@hass-prod
Welcome to Home Assistant OS.

Use `ha` to access the Home Assistant CLI.
# docker ps
CONTAINER ID   IMAGE                                                      COMMAND                  CREATED        STATUS                  PORTS                                       NAMES
c0c6f7e717cc   3f6f8ac8/amd64-addon-smartbed-mqtt:1.1.22                  "/smartbed-mqtt/run.…"   8 hours ago    Up 8 hours                                                          addon_3f6f8ac8_smartbed-mqtt
8443345c4a3f   ghcr.io/esphome/esphome-hassio:2025.4.0                    "/init"                  8 hours ago    Up 8 hours                                                          addon_5c53de3b_esphome
d70e89779e1b   ghcr.io/hassio-addons/vscode/amd64:5.19.1                  "/init"                  8 hours ago    Up 8 hours (healthy)                                                addon_a0d7b954_vscode
8a00cb34e774   ghcr.io/home-assistant/amd64-hassio-cli:2025.04.0          "/init"                  4 days ago     Up 4 days                                                           hassio_cli
f501290b9c95   ghcr.io/hassio-addons/zwave-js-ui/amd64:3.22.0             "/init"                  4 days ago     Up 4 days (healthy)     0.0.0.0:3000->3000/tcp, :::3000->3000/tcp   addon_a0d7b954_zwavejs2mqtt
4cfefad1955f   ghcr.io/home-assistant/qemux86-64-homeassistant:2025.4.2   "/init"                  4 days ago     Up 8 hours                                                          homeassistant
c463a146604c   ghcr.io/home-assistant/amd64-hassio-supervisor:latest      "/init"                  7 days ago     Up 7 days                                                           hassio_supervisor
aa9c317a0149   brainicism/bgutil-ytdlp-pot-provider:0.8.2                 "node build/main.js"     8 days ago     Up 8 days               0.0.0.0:4416->4416/tcp, :::4416->4416/tcp   addon_d5369777_ytm_po_token_generator
9e93b97d4cef   ghcr.io/home-assistant/amd64-hassio-observer:2025.02.0     "/usr/bin/observer"      3 weeks ago    Up 3 weeks              0.0.0.0:4357->80/tcp, [::]:4357->80/tcp     hassio_observer
062ce072b5bc   ghcr.io/home-assistant/amd64-hassio-multicast:2025.02.0    "/init"                  3 weeks ago    Up 3 weeks                                                          hassio_multicast
949cd457841a   ghcr.io/home-assistant/amd64-hassio-audio:2025.02.0        "/init"                  3 weeks ago    Up 3 weeks                                                          hassio_audio
2b046420ecae   homeassistant/amd64-addon-nginx_proxy:3.11.1               "/init"                  6 weeks ago    Up 6 weeks              0.0.0.0:443->443/tcp, :::443->443/tcp       addon_core_nginx_proxy
30ea030ec3c9   ghcr.io/home-assistant/amd64-hassio-dns:2025.02.0          "/init"                  6 weeks ago    Up 6 weeks                                                          hassio_dns
5d8699d580c4   homeassistant/amd64-addon-whisper:2.4.0                    "/init"                  2 months ago   Up 2 months (healthy)                                               addon_core_whisper
c0c4cfabcb8f   homeassistant/amd64-addon-piper:1.5.2                      "/init"                  2 months ago   Up 2 months (healthy)                                               addon_core_piper
19f2798e3138   homeassistant/amd64-addon-openwakeword:1.10.0              "/init"                  2 months ago   Up 2 months (healthy)                                               addon_core_openwakeword
#

Holy Jesus. I had found that answer and even tried that and still got no connection. So I went back to the zwavejsui settings for home assistant and put it in the server host line just hoping and this time it worked! I had tried my own server name and ip address I didnt think to try a0d7b954-zwavejs2mqtt. Since it originally, I think, said optional. Thank you for the help.

You’re not supposed to change the ZUI Websocket server settings, it’s supposed to be blank.