I have been suffering from losing devices on an off, general instability… having only about 3 days of uptime before something stopped working.
It annoyed me not knowing why… so i started to keep track of variables that were triggering it. The only thing i could pinpoint was if lots of people were in the house (with mobile phones), then bad stuff would happen.
So, lets get more scientific. I bought an £11 xbee (actually £11 for 2)) a £3 usb converter and booted up XCTU, sketched together some settings from lots of other posts on xbee and connected it as a thing.
I can now see my zigbee mesh… i can start to play. first thing i saw is lots of mobile devices = lots of intereference.
What i saw was a marginal mesh at best, very weak signal between the hub, and the outlet, and pathetic signal to some of the areas i had devices. Mobiles killed the mesh, signal dropping to zero.
So, i then simply converted my xbee to a router, and placed it near the troublesome devices. Hey presto… stability.
So i bought a couple more xbees and converters (so outlay is now £22 for 4 xbees, and £12 for 4 usb converters), set them up as routers, saving one to plug into my pc to watch what is happening.
Hmmm… still instability for devices in my kitchen…yet signal is good. Looking at the routing, the devices are using my ikea tradfri as routers. Turns out that whilst they have strong signal, they are causing an issue somehow. I took them off my zigbee mesh (by adding them to my hue mesh), let the zigbee mesh heal and hey presto - everything stable.
Whats the takeaway
Zigbee from the smartthings hub and outlets is weak. think one, maybe two rooms only if block walls, or electrics interfering.
Wifi / mobiles interfere and can break weak networks
Troubleshooting needs and xbee series 2, XCTU software , and a hint of geek to work out…
if you flood your place with good repeaters, your network is likely to be significantly more stable.
Bulbs repeat, with good signal, but for some reason are causing a problem.
Update 16th April 2018
- See posts 82-85 for some settings to try if you are using xiaomi sensors.
- Ikea tradfri bulbs have proven to be stable repeaters for me