Many thanks.
I use a Yellow Box.
I am not sure about what you mean by controller.
I made sure that Zwave JS is stopped and will remove it all together.
I rebooted the Yellow Box several times (and waited a few minutes before restarted) but that did not resolve it.
"mqtt": {
"name": "Mosquitto",
"host": "core-mosquitto",
"port": 1883,
"qos": 1,
"prefix": "zwave",
"reconnectPeriod": 3000,
"retain": true,
"clean": true,
"auth": false,
"username": "",
"password": "",
"disabled": true,
"_ca": "",
"ca": "",
"_cert": "",
"cert": "",
"_key": "",
"key": ""
},
"gateway": {
"type": 0,
"plugins": [],
"authEnabled": false,
"payloadType": 0,
"nodeNames": true,
"hassDiscovery": true,
"discoveryPrefix": "homeassistant",
"logEnabled": true,
"logLevel": "info",
"logToFile": false,
"values": [],
"jobs": [],
"disableChangelog": false,
"notifyNewVersions": false,
"retainedDiscovery": true,
"sendEvents": true,
"publishNodeDetails": true,
"includeNodeInfo": true,
"versions": {
"app": "11.11.0",
"driver": "15.20.1",
"server": "3.5.0"
}
},
"zwave": {
"enabled": true,
"port": "/dev/ttyACM0",
"allowBootloaderOnly": false,
"commandsTimeout": 30,
"logLevel": "info",
"rf": {
"txPower": {},
"autoPowerlevels": true,
"region": 1
},
"securityKeys": {
"S2_Unauthenticated": "FC316A4536B2487D35F32553CEDF10A7",
"S2_Authenticated": "6965E5B9FA0777E53D61F15CB73C574F",
"S2_AccessControl": "84EAE6418A81111E6CD8A74BBFE0E0A1",
"S0_Legacy": "E998594A0EB3406533A4004D015B21C9"
},
"securityKeysLongRange": {},
"deviceConfigPriorityDir": "/data/store/config",
"logEnabled": true,
"logToFile": true,
"maxFiles": 7,
"serverEnabled": true,
"serverServiceDiscoveryDisabled": false,
"enableSoftReset": true,
"disableOptimisticValueUpdate": false,
"enableStatistics": true,
"serverPort": 3000,
"maxNodeEventsQueueSize": 100,
"higherReportsTimeout": false,
"disableControllerRecovery": false,
"disableWatchdog": false,
"disableAutomaticFirmwareUpdateChecks": false,
"networkKey": "",
"disclaimerVersion": 1
},
"backup": {
"storeBackup": true,
"storeCron": "0 0 * * *",
"storeKeep": 7,
"nvmBackup": true,
"nvmBackupOnEvent": true,
"nvmCron": "0 0 * * *",
"nvmKeep": 7
},
"zniffer": {
"enabled": false,
"port": "",
"logEnabled": true,
"logToFile": true,
"maxFiles": 7,
"securityKeys": {
"S2_Unauthenticated": "",
"S2_Authenticated": "",
"S2_AccessControl": "",
"S0_Legacy": ""
},
"securityKeysLongRange": {
"S2_Authenticated": "",
"S2_AccessControl": ""
},
"convertRSSI": false
},
"ui": {
"colorScheme": "system",
"navTabs": false,
"compactMode": false,
"streamerMode": false,
"browserTitle": "Z-Wave JS UI",
"darkMode": false
}
}
This is json file of Zwave JS UI
I changed the USB port of the Yellow Box. The Zwave dongle is on a USB extension cord.
I deleted the Zwave JS (after a backup).
I have 64 Zwave devices and have never had a distance issue.
I got it to work after removing and re-adding the Zwave dongle on the extension cord.
Could the extension cable have issue?
If you move cable at different points or wiggle usb connection(not removing it) does blue light indicating power change in manner suggesting power flicker
When I say “controller” I’m referring to usb zwave stick. This is also known as zwave controller.
There are 4 slots in the USB extender and I moved the Zwave dongle to another slot. It works now and I will report here whether or not the improvement is consistent.
The ‘controller’ is:
Zooz 800 Series Long Range USB Controller ZST39 LR
For the past 3 days, my Zwave has been solid. @tmjpugh has been very helpful.
Once again, my Zwave frequently stops working.
Hereunder a AI Gemini analysis of the log, which goes beyong my level of understanding. Does someone reads something intelligent in this that can help me ?
The log details device status, value changes, and network activities within a Z-Wave smart home system. -
Multiple nodes (e.g., Node 054, 181, 184, 168, 171, 011) are monitored for status and value updates. -
Frequent "Value added" logs show changes in device parameters, often indicating "undefined" or "NaNs" for certain values like dimmingDuration. -
Many dimmingDuration values (e.g., 126 to 255) are consistently reported as NaNs, suggesting data issues or uninitialized values. -
Device states such as "dead," "awake," and "sleep" are logged, with some nodes (e.g., Node 181) marked as dead, leading to interview failures. -
Firmware checks and updates are scheduled, with at least one node (Node 164) identified for firmware updates. -
Device details such as product ID (12342), manufacturer ID (99), hardware version (255), firmware version (5.24), and protocol version (4.54) are recorded. -
The system reports overall network health, with periodic health check requests and responses. -
The logs include routine health checks via GET requests, with multiple instances of 301 redirects. -
Specific device actions, such as value updates (e.g., Node 184's duration and targetValue), are logged with state changes. -
The network comprises 65 nodes, with some nodes (e.g., Node 090, 200, 181) marked as dead, affecting network integrity. -
The system schedules future firmware checks, with the next check for Node 164 set for April 22, 2026, at 05:48:34 GMT-0400.
``
It work for many days after you unplug and replug? Try that again.
If result is same, many days working, I would suspect problem with usb hub. Honestly I suspect already and suggest move zwave dongle.
Many thanks. I rebooted my Yellow Box and yes I did move the Zwave dongle. Maybe I get a new dongle. Any sugestions and how to transfer the data to a new dongle ?
Zwavejsui has a controller backup function.
You can use that to backup and restore onto new device. This has similar function as “migrate” when change zwa-2 I believe.
Have you tried an extension cable? Direct connect to usb port can cause issues. I am thinking the hub you were using may be the problem.
Those zooz stick are pretty reliable so I have doubt it’s cause.
yes the Zooz dongle is on a USB extension
I put the Zwave Zooz dongle on a new extension cable but unfortunately the problem still happens about once a day at different times, and I can not identify a specific automation or other event that happens at the time. After restarting HA it is resolved (until next time…).
I THINK that it has been resolved. There has been no issue with Zwave since two days ago I removed the Yellow Box (with RPi 4) with a Beelink Mini PC.
It may be that my environment exceeded the capacity of the Yellow Box. Hopefully this was the issue and it has been resolved.