SLZB-06 freezing every few days

[Dinth]

Hi. Recently i have migrated from ZBDongle-P to SLZB-06 (powered over PoE) and while it works great when it works, every few days SLZB-06 is completely freezing and the whole mesh goes down.
Zigbee2MQTT log only shows this:

Zigbee2MQTT:warn  2024-02-02 09:00:01: Failed to ping 'Baby room uplight' (attempt 1/1, Read 0x0017880108aca49e/11 genBasic(["zclVersion"], {"sendWhen":"immediate","timeout":10000,"disableResponse":false,"disableRecovery":true,"disableDefaultResponse":true,"direction":0,"srcEndpoint":null,"reservedBits":0,"manufacturerCode":null,"transactionSequenceNumber":null,"writeUndiv":false}) failed (SRSP - AF - dataRequest after 6000ms))
Zigbee2MQTT:warn  2024-02-02 09:00:12: Failed to ping 'Shed floodlight' (attempt 1/1, Read 0x04cd15fffeddcf9c/11 genBasic(["zclVersion"], {"sendWhen":"immediate","timeout":10000,"disableResponse":false,"disableRecovery":true,"disableDefaultResponse":true,"direction":0,"srcEndpoint":null,"reservedBits":0,"manufacturerCode":null,"transactionSequenceNumber":null,"writeUndiv":false}) failed (SRSP - AF - dataRequest after 6000ms))
Zigbee2MQTT:warn  2024-02-02 09:00:23: Failed to ping 'Zigbee repeater first floor' (attempt 1/1, Read 0x00124b002447f894/1 genBasic(["zclVersion"], {"sendWhen":"immediate","timeout":10000,"disableResponse":false,"disableRecovery":true,"disableDefaultResponse":true,"direction":0,"srcEndpoint":null,"reservedBits":0,"manufacturerCode":null,"transactionSequenceNumber":null,"writeUndiv":false}) failed (SRSP - AF - dataRequest after 6000ms))
Zigbee2MQTT:warn  2024-02-02 09:00:34: Failed to ping 'Private office CRT screen' (attempt 1/1, Read 0x0c4314fffef7a0e7/1 genBasic(["zclVersion"], {"sendWhen":"immediate","timeout":10000,"disableResponse":false,"disableRecovery":true,"disableDefaultResponse":true,"direction":0,"srcEndpoint":null,"reservedBits":0,"manufacturerCode":null,"transactionSequenceNumber":null,"writeUndiv":false}) failed (SRSP - AF - dataRequest after 6000ms))
Zigbee2MQTT:warn  2024-02-02 09:00:45: Failed to ping 'Landing cabinets light 3' (attempt 1/1, Read 0x385b44fffe0c4a11/1 genBasic(["zclVersion"], {"sendWhen":"immediate","timeout":10000,"disableResponse":false,"disableRecovery":true,"disableDefaultResponse":true,"direction":0,"srcEndpoint":null,"reservedBits":0,"manufacturerCode":null,"transactionSequenceNumber":null,"writeUndiv":false}) failed (SRSP - AF - dataRequest after 6000ms))
Zigbee2MQTT:warn  2024-02-02 09:00:56: Failed to ping 'Master bedroom light 2' (attempt 1/1, Read 0x842e14fffe125b08/1 genBasic(["zclVersion"], {"sendWhen":"immediate","timeout":10000,"disableResponse":false,"disableRecovery":true,"disableDefaultResponse":true,"direction":0,"srcEndpoint":null,"reservedBits":0,"manufacturerCode":null,"transactionSequenceNumber":null,"writeUndiv":false}) failed (SRSP - AF - dataRequest after 6000ms))
Zigbee2MQTT:warn  2024-02-02 09:01:07: Failed to ping 'Zigbee repeater ground floor' (attempt 1/1, Read 0x00124b002447f8d4/1 genBasic(["zclVersion"], {"sendWhen":"immediate","timeout":10000,"disableResponse":false,"disableRecovery":true,"disableDefaultResponse":true,"direction":0,"srcEndpoint":null,"reservedBits":0,"manufacturerCode":null,"transactionSequenceNumber":null,"writeUndiv":false}) failed (SRSP - AF - dataRequest after 6000ms))

If i now restart Z2M im getting:

[09:07:29] INFO: Preparing to start...
[09:07:29] INFO: Socat not enabled
[09:07:30] INFO: Starting Zigbee2MQTT...
Zigbee2MQTT:error 2024-02-02 09:07:52: Error while starting zigbee-herdsman
Zigbee2MQTT:error 2024-02-02 09:07:52: Failed to start zigbee
Zigbee2MQTT:error 2024-02-02 09:07:52: Check https://www.zigbee2mqtt.io/guide/installation/20_zigbee2mqtt-fails-to-start.html for possible solutions
Zigbee2MQTT:error 2024-02-02 09:07:52: Exiting...
Zigbee2MQTT:error 2024-02-02 09:07:52: Error: Failed to connect to the adapter (Error: SRSP - SYS - ping after 6000ms)
    at ZStackAdapter.start (/app/node_modules/zigbee-herdsman/src/adapter/z-stack/adapter/zStackAdapter.ts:103:27)
    at Controller.start (/app/node_modules/zigbee-herdsman/src/controller/controller.ts:132:29)
    at Zigbee.start (/app/lib/zigbee.ts:60:27)
    at Controller.start (/app/lib/controller.ts:106:27)
    at start (/app/index.js:107:5)

On the SLZB-06 side there's nothing suspicious - normal temperatures, everything seems to work except no connected client:

setup | start
L_Y,L_B | status: 1
ConfigHelper | load config
ConfigHelper | config open: Ok
setup | Config loaded
setup | Device type: SLZB-06
[ZBCHK] | Connection OK
Network | init
Network | EVENT_ETH_START
Network | EVENT_ETH_CONNECTED
Network | ETH init: OK
setup | Filesystem size: 3456
setup | Filesystem used: 368
setup | done
Network | [MDNS] Started
Network | EVENT_ETH_GOT_IP
Network | ETH MAC: D4:8A:FC:A1:DF:6F IPv4: 10.10.25.10 GW: 10.10.0.1 Speed: 100Mbps DNS1: 10.10.0.1 DNS2: 0.0.0.0
taskZB | [taskZB] Starting server on port: 6638
Network | fireNetworkUp
Web | Webserver started
time | time sync start
internet | connected
time | timezone: GMT0BST,M3.5.0/1,M10.5.0
time | Wednesday, January 31 2024 17:00:47
taskTimeSync | Heap: 1448
stats | Statistics sent
stats | Heap: 2436
Network | EVENT: 0
Network | EVENT: 2
Network | EVENT: 3
taskZB | New client
taskZB | Client disconnected
taskZB | New client
taskZB | Client disconnected
taskZB | New client
taskZB | Client disconnected
taskZB | New client
taskZB | Client disconnected
taskZB | New client
taskZB | Client disconnected
taskZB | New client
taskZB | Client disconnected
taskZB | New client
taskZB | Client disconnected
taskZB | New client
taskZB | Client disconnected
taskZB | New client
taskZB | Client disconnected
taskZB | New client
taskZB | Client disconnected
Network | EVENT: 0
Network | EVENT: 2
Network | EVENT: 3
Network | EVENT: 0
Network | EVENT: 2
Network | EVENT: 3
Network | EVENT: 0
Network | EVENT: 2
Network | EVENT: 3
Network | EVENT: 0
Network | EVENT: 2
Network | EVENT: 3
Network | EVENT: 0
Network | EVENT: 2
Network | EVENT: 3
Network | EVENT: 0
Network | EVENT: 2
Network | EVENT: 3
Network | EVENT: 0
Network | EVENT: 2
Network | EVENT: 3
taskZB | New client
Network | EVENT: 0
Network | EVENT: 2
Network | EVENT: 3
taskZB | Client disconnected
taskZB | New client
taskZB | Client disconnected
taskZB | New client
taskZB | Client disconnected
taskZB | New client
taskZB | Client disconnected
taskZB | New client
taskZB | Client disconnected
taskZB | New client
taskZB | Client disconnected
Network | EVENT: 0
Network | EVENT: 2
Network | EVENT: 3
taskZB | New client

Seems that Z2M is trying to connect but the connection drops.

My Z2M config is as follows:

data_path: /config/zigbee2mqtt
socat:
  enabled: false
  master: pty,raw,echo=0,link=/tmp/ttyZ2M,mode=777
  slave: tcp-listen:8485,keepalive,nodelay,reuseaddr,keepidle=1,keepintvl=1,keepcnt=5
  options: "-d -d"
  log: false
mqtt: {}
serial:
  port: tcp://10.10.25.10:6638
  baudrate: 115200
  adapter: zstack
  disable_led: false
advanced:
  transmit_power: 20

When this happens i need to completely restart ESP32 and Zigbee stack via the SLZB-06 web panel. SLZB-06 is running on the latest firmware v2.0.16 / 20230507

[Dinth]

It may be related to #18192

[Dabbadoeber]

I stumbled open this thread, since a couple of days I got the same problem.... hopefully there is a fix soon. For me only power cycling the stick will bring the network back.

[Dabbadoeber]

I have connected ZHA to the same dongle:
Socket connected: | Yes, 2 client
Trying to check if the problem occurs on Z2M and ZHA then i should be related to the SLZB-06 dongle.
Maybe power issues ?

i used this guide to do so:

https://smarthomescene.com/guides/how-to-use-zigbee2mqtt-and-zha-with-a-single-coordinator/

[Dabbadoeber]

Problem is defently with the SLZB-06 as Both ZHA and Z2m dont have a connection anymore.

[Dinth]

After a month of suffering pain of instable/dead Zigbee mesh i have a few things to add:

1. I have tried both PoE and USB-C power and there is no difference - so the problem doesnt seem to be related to power.
2. Approx 2 times in 3 its still not possible to connect to the Zigbee gateway after restarting it, so often i need to restart it a couple of times before Z2M/ZHA can connect to it.
3. I have tried to export radio to ZHA and the problem exists in ZHA but feels little bit different. In Z2M i am noticing errors and devices dropping off gradually before the adapter freezes, but i believe ZHA was running rock stable until the moment the adapter freezes.
4. SMLight support before they have stopped responding to my emails suggested that the problem may be in the adapter and/or Z2M not able to handle some of the errors in my Zigbee mesh. I have tried switching the power off for an hour from all the devices and i have removed some dodgy routers from my mesh. It may be a coincidence, but after each of those actions the adapter was indeed working for considerably longer before freezing. Unfortunately after a freeze and next restart of the adapter everything went back to normal, that means adapter freezing quite often.

[Dabbadoeber]

I am only using Busch jeager switch on my network, i have splitted the network in my House into 3 parts.
this is because the busch jeager cannot handle to much devices.
If the Coordinator becomes onresponsive the BJ ZLL Switch still work, that is, switches that i have "bind" are still operational.
accept that no information is send to Z2M/Home assitant
i still have a usb dongle think these SLZB-6 crap wil go on e-Bay /Markplaats.

[Dabbadoeber]

I have created a new Zigbee2mqtt container on my Qnap en moved over everything (configuration.yaml, coordinator.json)
Also downgrade the SLZB-6 to version v0.9.9
and started, until now it seems ok (hopefully it wil keep running)

[Dinth]

Could you please keep us updated? I will also try flashing it next time my adapter freezes, but maybe i am going to try coordinator firmware?

[Dinth]

Also have you flashed 0.9.9 via the UI?
I can flash the older 2.0.17, but when trying 0.9.9 im getting OTA write error.

[Dabbadoeber]

i did flash it trough the ota.

I thought i had it running for a while, but in the night it stopped again.......
I only have 13 devices on this network, I just finished pairing them all to a USB SONOFF Zigbee 3.0 USB Dongle Plus-P.
I don’t like this because its running in a docker container on a Qnap nas, I don’t know if the link to port: /dev/ttyUSB0 will remain after reboot or something.
The pairing only took me about 1 hour.
Did save the database and configuration.yaml (only for the devices) and used this on the new network.
I didn’t had to remove cover or anything to pair the switches again.
So it was the most convenient way to go for me.
Did order a Zigstart UZG so maybe this will be better.

For now No more SLZB-6 for me.

[Dabbadoeber]

I did the transition to the sonoff dongle, but still Z2M Freezes (but not as much, and restarting docker fixes it) , zo maybe it is Z2m After all, going back to : koenkk/zigbee2mqtt:1.34.0
see if this runs stable.

[Dinth]

What is your hardware? I've been googling the errors im seeing and i have seen one post somewhere where a person was suggesting that this may be due to low disk write/read speeds and that replacing his drive (where the Z2M container was running from) to SSD has fixed those issues.
Although this doesnt explain why ZHA is also affected...

[Dinth]

Just got SNZB-06M today which has a completely different Zigbee chip and will be testing it.

On the other hand, i found something what may be helpful with such faulty SNZB-06 as i had before - apparently it can be flashed with ESPHome and still run as a Zigbee coordinator (its actually burried on their wiki) but on a completely different firmware.

[Dinth]

And SNZM-06M is still experiencing the same issue, a different device on a different chip (TI one).

[Dabbadoeber]

Hi back after a whille, i downgrade Z2M to [1.34.0] it has been running for a week with out issues (sonoff dongle)
today i changed everything to a UZG-01 , where i Write the IEEE from the dongle onto the UZG-01.
so i dont need to pair al devices again.

Hardware @ the moment is a Qnap NAS TVS-H874X, so this should not be a problem i think
is is a hassle with usb though, so thats why i preffer a LAN Coordinator.

[Dabbadoeber]

Pfff 100 devices , i only have 13 on this nework , split my home in 3 diffrent networks because of issues with slow ZLL devices, to much zigbee traffic made them freeze.
maybe switch on debug log in Z2M too see wich devices spams the network

[ViggoGaming]

Hi back after a whille, i downgrade Z2M to [1.34.0] it has been running for a week with out issues (sonoff dongle)

today i changed everything to a UZG-01 , where i Write the IEEE from the dongle onto the UZG-01.

so i dont need to pair al devices again.

Hardware @ the moment is a Qnap NAS TVS-H874X, so this should not be a problem i think

is is a hassle with usb though, so thats why i preffer a LAN Coordinator.

Hey. Do you mind sharing how you downgraded Z2M to version 1.34.0?

[dbroome1978]

It might be fixed on the next release.
See
#21462 (comment)

[Dinth]

Thanks, it has crashed again for me today.
I dont think its actually caused by one of the devices chattering/Zigbee being overloaded - once it happens Z2M stops receiving any messages from the mesh.

[Dabbadoeber]

I am using docker (Container station) so i recreated the image, and instead of the :latest tag is used :1.34.0
must say after HASS update i had some trouble (could not communicate with MQTT server) but since i updated this everyhing has been quite stable

[mremedi2023]

Same here, my lan zigbee is down

[guzmanregueiro]

I have the same problem. Every 3/4 hours it freezes

[Dinth]

@mremedi2023 @guzmanregueiro Have you tried the latest firmware (20240710) ?

[guzmanregueiro]

Yes. And now 20240716

[mremedi2023]

Yes

[Matriciel]

Hi,
Where are you find the firmware ?

[nonamejuju]

I have the same problem here. The SLEB-06 was rock solid for the past few months, but now Z2mqtt can't connect to it every few days. A hard reboot of the dongle fix it. Dongle connected in Ethernet with USB power. Maybe a new update of Home assistant changed something ?

[Dinth]

Which versions are you using (particularly Z2M and firmware)?
I had the problem since i migrated to PoE coordinators (back in January), Z2M update to 1.39.0 made it much worse, and then the latest firmware 20240710 fixed it.
HA is most definetely not a problem here, it wouldnt cause your coordinator to freeze.

I remember seeing some comments in the past connecting this issue to a slow disk i/o on Z2M host, so send us your spec please

Also if nothing else helps, i also remember seeing some comments from user who fixed that issue by downgrading Z2M to a really old version (1.34 maybe?), but dont remember specifically which one

[nonamejuju]

For SLZB-06 :

• Core firmware version: v2.5.0
• Zigbee Coordinator Revision: 20240710

Zigbee2MQTT :

• Current version: 1.39.1-1

Home Assistant:

• Core 2024.8.2
• Supervisor 2024.08.0
• Operating System 13.1
• Frontend 20240809.0

Running on a BMAX B4 Plus Mini PC Intel N100 16GB 512GB SSD, with promox, the coordinator is behind an ethernet switch, and I'm running in parallel ZHA with a Sonoff ZBDongle-E connected directly in USB for the talky devices. I will investigate the logs and try different config and testing things and report back.

[Dinth]

ok, ssd this rules out slow disk i/o.
I would first try reverting Z2M back to 1.38

[foufoutos21]

I have two controllers SLZB-06 and I was quite happy with their performance for the last months.
Lately I have a lot of strange errors and freezes of the whole MQTT structure. I'm using 3 coordinators in a multistorey building as the only workable solution. One usb coordinator connected to Home assistant pc (a FUTRO thin client with 4GB ram and 256GB mSATA SSD) and the two SLZB-06 via POE LAN.
First observation was the broken web interface of the devices.
Then SSE errors during connection to the web interfaces, then noticed freeze of Z2M instances. Lately is not accessible at all and collapse of my Home automation system.
SLZB-06 are not reliable, are not stable and they are not offering any kind of support.
I have try any possible firmware available in their web flasher, any combination of zigbee firmware but in vain!

Zigbee2 MQTT version 1.39.1-1 Home Assistant Core 2024.8.2 on 13.1 OS
SLZB-06 with 0.99 and 2.5.0 /2.3.6 core frmware, unsure what zigbee firmware is running as I'm testing everything is available.
Frustrated and disappointed!
Any assistance is welcomed

[nonamejuju]

For SLZB-06 :

• Core firmware version: v2.5.0
• Zigbee Coordinator Revision: 20240710

Zigbee2MQTT :

• Current version: 1.39.1-1

Home Assistant:

• Core 2024.8.2
• Supervisor 2024.08.0
• Operating System 13.1
• Frontend 20240809.0

Running on a BMAX B4 Plus Mini PC Intel N100 16GB 512GB SSD, with promox, the coordinator is behind an ethernet switch, and I'm running in parallel ZHA with a Sonoff ZBDongle-E connected directly in USB for the talky devices. I will investigate the logs and try different config and testing things and report back.

All right after a month I don't have any problem.

I have moved it to another location, next to my Sonoff ZBDongle-E and Wi-Fi router. On paper, it's a worse location than the previous one (which was in the middle of the house), but there have been no more disconnections or freezes since. I also updated to the latest Z2MQTT version that was released. It's worth noting that the SLZB-06 is now connected directly to my main Wi-Fi router via Ethernet, instead of being behind a switch. Hope this help someone !

[mremedi2023]

Same here, I keep having problems, definitely Zigbee technology is not stable, much less user-friendly, with more than 70 devices, I am about to move everything to WiFi as I had before and without problems. El dom, 25 ago 2024 a la(s) 2:41 p.m., foufoutos21 ***@***.***) escribió:

…

I have two controllers SLZB-06 and I was quite happy with their performance for the last months. Lately I have a lot of strange errors and freezes of the whole MQTT structure. I'm using 3 coordinators in a multistorey building as the only workable solution. One usb coordinator connected to Home assistant pc (a FUTRO thin client with 4GB ram and 256GB mSATA SSD) and the two SLZB-06 via POE LAN. First observation was the broken web interface of the devices. Then SSE errors during connection to the web interfaces, then noticed freeze of Z2M instances. Lately is not accessible at all and collapse of my Home automation system. SLZB-06 are not reliable, are not stable and they are not offering any kind of support. I have try any possible firmware available in their web flasher, any combination of zigbee firmware but in vain! Zigbee2 MQTT version 1.39.1-1 Home Assistant Core 2024.8.2 on 13.1 OS SLZB-06 with 0.99 and 2.5.0 /2.3.6 core frmware, unsure what zigbee firmware is running as I'm testing everything is available. Frustrated and disappointed! Any assistance is welcomed — Reply to this email directly, view it on GitHub <#21157 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BENWU6TMBYDBYDFX4XQLVX3ZTIJLZAVCNFSM6AAAAABCWKS5AKVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTANBUGQYTIMY> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[foufoutos21]

I can spot the culprit in my setup but my third coordinator is a usb sonoff stick with z2m same as others (1.39.1-1) and it's rock solid.
My next step is such controller in raspberry pi with POE or (maybe) I'll give a try to ZigStar UZG-01.

[Blackduke77]

Wonderful, I have been having the same issues, and from this thread, we are not going to get to the bottom of it. Has anyone tested a working alternative

[Blackduke77]

I am going to try and go back to firmware 20240315

[mremedi2023]

I did 2 things that improved the issue quite a bit, the first was to move my coordinator somewhere else, I have a 3 story building and I put it in the middle of everything, away from any interference. Now the most important thing, I only left zigbee2mqtt on my HA, I completely uninstalled zha, this has improved a lot. El sáb, 31 ago 2024 a la(s) 6:59 p.m., Blackduke77 ***@***.***) escribió:

…

Wonderful, I have been having the same issues, and from this thread, we are not going to get to the bottom of it. Has anyone tested a working alternative — Reply to this email directly, view it on GitHub <#21157 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BENWU6U5HVRP6VDALC5BSXTZUI4ERAVCNFSM6AAAAABCWKS5AKVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTANJQHEZDGOI> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[Blackduke77]

Thanks for the reply, I don't have ZHA installed, but I could try and move the coordinator, I have a spare I could add as a repeater as well maybe.

[mremedi2023]

It's worth a try Good luck El sáb, 31 ago 2024 a la(s) 7:25 p.m., Blackduke77 ***@***.***) escribió:

…

Thanks for the reply, I don't have ZHA installed, but I could try and move the coordinator, I have a spare I could add as a repeater as well maybe. — Reply to this email directly, view it on GitHub <#21157 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BENWU6TYH3PNYKW34GSFNKDZUI7EJAVCNFSM6AAAAABCWKS5AKVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTANJQHEZTAMQ> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[Fernando-Checa]

I've been using SLZB-06p7 for a few months and just a couple of days ago started to get sluggish and even hang sometimes to the point I couldn't even access the web interface.
Rebooting the device seems to work for a while, but hangs again after a while.

I'm using POE but I read that it does not matter.

I didn't update anything lately so I don't understand why it started now to misbehave. It's been working just fine for months.

Maybe something in the power supply is breaking?

In the mean time, I found a way to reboot the device remotely, to see if at least does not crash on its own.

Sending a POST command every night to reboot it.

http://192.168.x.x/api2?action=4&cmd=3

EDIT: You have to restart zb2mqtt afterwards as well

[drjjr2]

I've been using SLZB-06p7 for a few months and just a couple of days ago started to get sluggish and even hang sometimes to the point I couldn't even access the web interface. Rebooting the device seems to work for a while, but hangs again after a while.

I'm using POE but I read that it does not matter.

I didn't update anything lately so I don't understand why it started now to misbehave. It's been working just fine for months.

Maybe something in the power supply is breaking?

In the mean time, I found a way to reboot the device remotely, to see if at least does not crash on its own.

Sending a POST command every night to reboot it.

http://192.168.x.x/api2?action=4&cmd=3

EDIT: You have to restart zb2mqtt afterwards as well

This started happening to me as well. Works great for a few days. Then I notice sluggishness with motion sensors. Then when I try to access the web interface it either doesn't load or loads in some text mode. At first I thought it was related to getting the network map, but I haven't generated one of those since the last slowdown.

I reverted back to my SONOFF USB dongle to see what's what.

[Fernando-Checa]

It looks like rebooting every night is working.. network is not sluggish anymore.
Accessing web interface sometimes is, showing just text, but does not seem to affect performance.

[johspa933]

Having the exact same issue, been rebooting every couple days which seems to be helping stability but still run into the sluggishness on the SLZB-06 web interface sometimes...