# Zigbee Devices All Offline Overnight

**URL:** <https://community.smartthings.com/t/zigbee-devices-all-offline-overnight/280041>\
**Category:** General Discussion\
**Created:** [March 22, 2024, 11:17am UTC](https://community.smartthings.com/t/zigbee-devices-all-offline-overnight/280041 "2024-03-22T11:17:09Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Peter\_Wood](https://yyz2.discourse-cdn.com/smartthings/user_avatar/community.smartthings.com/peter_wood/32/100458_2.png) [@Peter\_Wood](https://community.smartthings.com/u/Peter_Wood)\
**Post date:** [March 22, 2024, 11:17am UTC](https://community.smartthings.com/t/zigbee-devices-all-offline-overnight/280041/1 "2024-03-22T11:17:09Z")

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At about 04:30(UK) all of my zigbee devices went offline, my Z wave devices were fine, about an hour later my two leak sensors came back online so I guessed my hub’s zigbee was still functional, I got out of bed and struggled to the hub in semi darkness because I’ve got a smarthome so I’m damned if I’m using light switches like a ludite! I unplugged the hub plugged it back in and returned to bed to watch all of the devices come back online in stages. Completely new phenomena to me.

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**Author:** ![Ace2](https://avatars.discourse-cdn.com/v4/letter/a/c4cdca/32.png) [@Ace2](https://community.smartthings.com/u/Ace2)\
**Post date:** [March 22, 2024, 12:18pm UTC](https://community.smartthings.com/t/zigbee-devices-all-offline-overnight/280041/2 "2024-03-22T12:18:49Z")

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That samething happened to my setup a few weeks ago, 100% of zigbee sensors and lights.  
Hub still functioning as a routines still firing.  
A simple power cycle of hub fixing most.  
A few had to be re found, mainly the aqara temp/hum sensors which is common

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**Author:** ![Somebody](https://avatars.discourse-cdn.com/v4/letter/s/3ab097/32.png) [@Somebody](https://community.smartthings.com/u/Somebody)\
**Post date:** [March 22, 2024, 5:13pm UTC](https://community.smartthings.com/t/zigbee-devices-all-offline-overnight/280041/3 "2024-03-22T17:13:42Z")

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My experience is that devices all go offline on mass after a firmware update on the hub.

Devices will come back eventually but I find walking around opening and closing contact sensors, triggering motion sensors etc will bring them back online there and then.

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**Author:** ![olson](https://avatars.discourse-cdn.com/v4/letter/o/c37758/32.png) [@olson](https://community.smartthings.com/u/olson)\
**Post date:** [March 23, 2024, 1:36am UTC](https://community.smartthings.com/t/zigbee-devices-all-offline-overnight/280041/4 "2024-03-23T01:36:01Z")

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I had the same situation happen at my home recently. It started with the zigbee devices going offline then i would reboot the hub and zigbees would be online for a day or so etc etc. Eventually all devices would drop offline and i would reboot and things would be back online for a day or so. Eventually i replaced the hub with a new hub and using the “hub replacement function” in smartthings. Replacement was easy and no problems since.