I’m quite new to HA so I’ll apologise now for my lack of knowledge.
I’m running HA via VMWare on a Windows 10 PC, I have a flashed (tasmota) Sonoff ZB and ZHA integration installed. I don’t have many Zigbee devices (1 Samsung door contact, one Samotech door contact, 2 Innr Lights, 2 Samotech dimmers, 2 Xioami temp sensors, 1 Xiaomi door contact).
On a daily basis I am experiencing issues where all the devices go offline. The HA log shows:
It looks like a mixed set of feedback, some people saying it is the best thing, others saying it doesn’t work. I woke again this morning to find all my zigbee devices offline. a restart of the Sonoff ZB didn’t fix it, but a restart of HA did.
So what would you say is the best solution?
Is ZHA the issue? I could try Zigbee2MQTT instead?
I see there are several USB dongles out there, Conbee II, 2531? Again, some people have said they are rock-steady, other’s have “jumped ship”
Invest in an 100% stable WiFi solution with 0% dropped packages and low-latency performance.
IMHO getting a new USB-stick Zigbee coordonator is the safe option today, and if you need it in a more flexble solution then you can always use it via ser2net or similar on a Raspberry Pi with wired Ethernet.
Note! Wired Ethernet based EZSP Zigbee-to-Serial bridge/gateway also require 100% stable network.
If you want to go straight USB, I’d recommend the ConbeeII. It’s a good, solid adapter that works well with ZHA, deconz, z2m, etc. However, if you want a LOT of devices (greater than 50), you’ll outgrow it quickly as it can only handle around 5 children and only a small amount of both normal routes and source routes.
I just got one of his coordinators recently and to be honest, it’s been REALLY good for my mesh. Personally, I like the CC2652p2 over the ESP version. I also have 2 of his routers. I know he is working his tail off right now to get more in stock. You can reach him here on the forum (@tube0013) and you can see my results here: https://community.home-assistant.io/t/zigbee-router-on-steroids
It’s not so much about the type of AP you have (I have the same), it is more about the channel interference between Zigbee and WiFi; They operate in the same 2.4ghz space and even the Unifi APs have issues with 2.4ghz interference.
Then it sounds like signal interference that might actually be your problem instead. Very possible that your Zigbee coordinator has reception problems because AP makes too much noice. Suggest moving your Zigbee coordinator further away from your WiFi access-points and other source of interferance.
Just code-in-progress hinted at, not only does both Zigbee and WiFi operate in the same freqency range but it is impoerant to understand that Zigbee radios transmits low-power signals and WiFi access-points has more powerful radios that transmits stronger signals.
My wi-fi and Zigbee channels are at the “opposite” ends of the 2.4 range. I have Zigbee on 15 (Wi-fi channel 3) and my AP is on wi-fi channel 13. Admittedly there is background noise from my neighbours’ APs that is the same frequency as the Zigbee, but I don’t have any choice about there, there is not a clean frequency range to use
I’ve order one of Tube’s wired coordinators, so I’ll see if that solves the issue. But in the mean time I will move the Sonoff ZB bridge to a different location.
I’d check also at the transmit power on your AP as well. If it’s set to medium or greater, that would cause the Zigbee signal on the Sonoff to get drowned out by the AP.
