So about all day now most of my Zigbee devices are unresponsive no matter what I do, cut power or factory reset. I have many Osram Lightify lights, some GE Link bulbs, Cree bulbs and a bunch of Iris contact sensors. Earlier today the same thing happened and after some time I regained control on al…

Check for a conflict with wireless networks. I’m sure you set it up right in the first place but my hub randomly hopped channels the other day and it was in conflict with my wireless and those were the exact symptoms. It took an age to figure out because I ruled it out as an issue having made no cha…

@Jon_Hope thank you for your reply but my hub is on channel 24 and my router is on channel 6 so doesn’t seem to have a conflict there.

[image] dshokouhi: @Jon_Hope thank you for your reply but my hub is on channel 24 and my router is on channel 6 so doesn’t seem to have a conflict there. Do you have a neighbor that got a new router ?

That is a possibility but I don’t see any conflicting channels when I run an app.

Decided to move the hub out of the same room as the router and so far all seems to be well. Not sure what triggered this happen over night when I didn’t add any new devices so maybe neighbor got a new router and it started crowding the frequency? Not really sure as I only see myself under this cha…

Someone else reported the same problem recently: [image] All Zigbee devices are offline General Discussion I am working with support with this, but I was curious if the community had any suggestions. All of my SmartSense Moisture Sensors, SmartSense motion sensors and Sm…

interesting ive had some connection issues also with my devices and hub. in the smartthings app it shows hub offline then i click over to the first tab and all goes green and back online. go back to turn on a bulb and offline again. i first noticed it because my tablet on the wall running smartthing…

Could all just be coincidence in the sense that there’s always the possibility of local interference or device failure and it could just be a couple of different people reporting at the same time. Best thing if you’re affected is to contact support.

I’ve had every SmartThings zigbee device fail this week ( 5 contact/ multisensors + 4 motion). I have had issues over the last few months with some but not had time to explore it- but this is a bit more catastrophic. I’ve tried resetting/ re-pairing with no luck. Even with interference I’d have expe…

Any solution to this? All my ZigBee devices show offline. I can control them through routines and through Alexa however.

Sudden Loss of Connection and Control on Most ZigBee Devices

General Discussion

JDRoberts March 17, 2017, 11:12pm 9

Someone else reported the same problem recently:

Topic		Replies	Views
Every Zigbee device is offline (Jan 2020) General Discussion troubleshooting	60	7322	January 6, 2022
Major Weird Zigbee Issues (July 2016) General Discussion	24	5529	July 24, 2017
All zigbee devices went offline and can no longer pair old or new devices General Discussion zigbee , hubv2 , offlinebug	9	2106	April 1, 2019
Several ZigBee Devices stopped responding (Troubleshoot question) Devices & Integrations	6	5278	August 3, 2016
Zigbee devices on and off line often (new problem late Sept 2018) General Discussion	11	1290	October 8, 2018

Sudden Loss of Connection and Control on Most ZigBee Devices

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