Two days ago I lost 10 devices attached to one ZB repeater.
I had to rejoin everything, a few times, to get them back.
Just now I lost 5 Tuya ZB repeaters along with 60 devices running through them.
I have never had a single issue with ZB in 5 years except the odd XIaomi fight.
I'm on a C8 .169 beta but I don't it's that as I haven't seen any reports.
in the last few weeks I have seen ZB offline message a few time which again I have never had in my C7 or C8.
Any one else had this experience? Hoping it's not my radio failing.
PS: Just did a power off and restart.
I have 9 repeaters and NO devices.
Did a network rebuild. Sit and wait for that, I think it can take a day.
This can give you some insights at the Zigbee repeater level if your repeaters are either dedicated repeaters or simple switches. It won't fix anything, but you'll be better able to understand your Zigbee network and that will go a long way to helping you figure out where the vulnerable spots are in your mesh.
I have 4 dedicated repeaters to cover my house. I have a lot of water, bulbs, presence and motion sensors, some of which are in a fridge, freezer, car, backyard and under metal appliances so a strong mesh was necessary.
I also have a garage out back next to the pool and there are 5 ZB devices there; the Tuya repeaters are aces at distance.
The other 5 are due to me powering them instead of changing batteries so that's just the bonus.
Almost all of my devices prefer the Tuya.
Your Zigbee map is beautiful to look at, so pure and simple!
But Zigbee does not care about that, it actually thrives on messy jumbled up repeater connections going all over the place. The more, the healthier.
I believe your current setup is not very resilient, if a repeater gets knocked out, it takes a good part of its children with it if they cannot find another repeater in close range. I would at least double the number of (quality) repeater devices in your mesh.
I have about 20 repeaters for about 160 Zigbee devices total. 15 are of the repeaters are plug-in devices. I went with a rule of thumb of about 8 battery devices per repeater, simply to build a more resiliant Zigbee mesh. In the end, I just about ended up with one repeater per room in the house.
I've lost repeaters (like the Ikea TRÅDFRI outlets, which I've had 5 fail) and never had Zigbee devices fall off the mesh because of it.
I know there is no distance involved in the map but most of the repeaters are within 5-10 meters of each other. The Shed is really the only outlier.
I do have extra repeaters but no more USB power supplies left; all the spares got eaten with every device I powered or move off of battery.
Off the Amazon for a bulk buy I guess.
I'm still exploring changing channels. They neighbourhood is getting crowded in the 2.4 band and it looks like my new mesh access points have, an uncontrallable, wide bandwidth.
I can alter the 5 Ghz bandwidth but not the 2.4; it's automatic.
You can see my mesh Legacy SSID takes up a lot of room. I has been in for 2 months though without any HE issues.
That scan tool is iffy at best -- I wouldn't trust it very much.
My C7's zigbee was rock-solid but when I moved to C8, it became a mess... One of the two things that really helped get my zigbee mesh back working well was moving to Ch 25 (from 15 [my Hue is on 20]) and setting radio power to 4 -- that way, my repeaters are carrying almost all the water.
The second thing that helped me was removing any older 1.2 zigbee repeaters, and ensuring all of my repeaters are ZB3.0. Thankfully, I just had a couple older repeaters to swap out.
To eliminate my, oh so reliable ST, motion sensors from repeating I would have to put 3 of them back on battery. I really liked not having to change as many.
I just added a Hue outdoor motion so maybe that's the other channel 20 I have now?
I always prefer a lower freq as the range is better but maybe here it's not a big deal with repeaters.
I have been using 2.4 since it was invented, , and I have decades of IT experience that has borne out the fact that channel 1 is really does work better than 11 for penetration and distance.
I ordered some more 3.0 repeaters so I guess it's experimentation time this fall.
As long as ZB doesn't drop again! Hang in there old girl.
I run Zigbee at 8, thinking being that I don't want a lot of my Zigbee battery devices connecting directly to the hub at their "extreme" limits...hub can run at 12 or higher power, but battery devices are likely lower power and they may have trouble connecting back to the hub consistently/reliably. I'd rather they get a ride from a repeater in-between, w/fall-back repeaters around to help when necessary, as @dandanache notes, messy is good.
Lowered radio to 8.
Got my mesh to reallocate to a lower channel 7 ->4 so away from ZB 20.
I'll throw in some more repeaters when they arrive.
Thanks for the chat. Fingers crossed no radio issues.
What channel is your 2.4Ghz wifi using? Deconflicting with any other ZB channel (e.g. Hue etc) is obviouly important, but staying clear of your 2.4 wifi is also key.
