- Networks
- Smart lighting and home hubs
Some online devices appear offline
Samsung Some online devices appear offline: hub and lights
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Medium
Quick answer
When your Samsung SmartThings setup shows that Some online devices appear offline for connected lights or hub devices, check that each device has power, verify no intermediate Zigbee repeater was unplugged, reduce obstacles, and check Wi-Fi interference before deleting and re-adding.
Safety first
Stop and check this first
- Deleting an offline device via Devices > press and hold > Edit > Delete Device erases its pairing and SmartThings app settings; check power, distance, and hub restart first.
- Never open a smart bulb, hub, driver, or power supply (technician only), and leave hardwired luminaires, wall switches, dimmers, and mains wiring to a licensed electrician; if any device is hot, swollen, smoking, or smells of burning, unplug it if safe and stop using it.
Safe checks you can perform
- Check power, unplug plug-in devices for 2 minutes, and verify Zigbee repeaters
- Move the hub away from the Wi-Fi router and verify 2.4 GHz Wi-Fi settings
- Restart the SmartThings Hub or delete and re-register the offline device
Leave these tasks to a qualified professional
- Do not attempt this professional task: Audit Zigbee repeater path, hub-to-router separation, and Wi-Fi channel 1, 6, or 11
- Do not attempt this professional task: Verify 2.4 GHz visible-SSID network settings and supervise device re-registration
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Audit Zigbee repeater path, hub-to-router separation, and Wi-Fi channel 1, 6, or 11
What they doThe technician ensures the SmartThings Hub is positioned as far from the Wi-Fi router as the Ethernet cable allows, checks whether any intermediate Zigbee repeater was removed, and sets the router 2.4 GHz Wi-Fi channel to 1, 6, or 11 to avoid overlap with Zigbee channels 14-25.
They must show youthe physical separation between hub and router, the router Wi-Fi channel setting (1, 6, or 11), and active Zigbee repeater nodes.
In writingconfigured Wi-Fi channel, verified Zigbee repeater placement, and online status of the affected devices.
Verify 2.4 GHz visible-SSID network settings and supervise device re-registration
What they doWhen a SmartThings Home Hub loses device connectivity after a Wi-Fi change or a single device stays offline after a hub restart, the technician verifies 2.4 GHz support without a hidden SSID, updates Wi-Fi information in the app, and assists with deleting and re-adding the device.
They must show youthe Update Wi-Fi information screen or the online tile of the re-registered lighting device in SmartThings.
In writingconfirmation of 2.4 GHz non-hidden SSID, prior notice that deleting a device removes its app settings, and final connection test.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Check power, unplug plug-in devices for 2 minutes, and verify Zigbee repeaters
- Who:
- you, inspecting the lights or plug-in devices that appear offline in your SmartThings app.
- How:
- confirm the device is turned on, disconnect power on plug-in devices for 2 minutes (or remove batteries for 30 seconds on battery devices), and check whether another device acting as a Zigbee repeater between the hub and the offline device was removed.
- Result that matters:
- restore power and mesh routing to the SmartThings Hub as described in Samsung official guides and TSG10007366.
- If the device returns online after power-cycling or restoring the Zigbee repeater:
- keep the clear path between units.
- If the device still appears offline:
- move it closer to the hub with no obstacles and check router placement.
- Evidence to keep:
- list of offline devices in the SmartThings app and placement of any intermediate Zigbee repeaters.
Evidence: SmartThings device does not respond or the status is disconnected or incorrect · Some of my online devices appear offline in the SmartThings hub
Move the hub away from the Wi-Fi router and verify 2.4 GHz Wi-Fi settings
- Who:
- you, checking the physical placement of your SmartThings Hub and your home Wi-Fi configuration.
- How:
- make sure the hub is not stacked on top of a Wi-Fi router or near cordless phones (move it as far from the router as the Ethernet cable allows); on a SmartThings Home Hub after an AP change, confirm 2.4 GHz support with a visible SSID and go to More (+) > Settings > Wi-Fi > Update Wi-Fi information.
- Result that matters:
- reduce wireless interference and refresh the hub network link per Samsung official troubleshooting.
- If connected lights and devices come back online after separating the hub or updating Wi-Fi:
- test control from the app.
- If specific devices stay offline even next to the hub:
- restart the SmartThings hub by turning it off and on.
- Evidence to keep:
- screenshot of device status in SmartThings after repositioning the hub or updating Wi-Fi settings.
Evidence: SmartThings device does not respond or the status is disconnected or incorrect · Devices connected to my SmartThings hub appear offline
Restart the SmartThings Hub or delete and re-register the offline device
- Who:
- you, only after moving the offline device close to the hub and confirming it still does not connect.
- How:
- restart the SmartThings hub by turning it off and on; if a specific device remains offline, note that deleting it removes its pairing and app settings before going to Devices > press and hold the device > Edit > Delete Device and re-adding it under More (+) > Device.
- Result that matters:
- complete a clean re-registration of the unresponsive device with the SmartThings Hub per Samsung instructions.
- If the device re-registers and responds normally:
- return it to its room while keeping repeater range in mind.
- If the device still fails to stay online right next to the hub:
- have a technician check Wi-Fi channels 1, 6, or 11 and Zigbee interference.
- Evidence to keep:
- hub restart outcome and screenshot of the re-registered device tile in the SmartThings app.
Evidence: Algunos de mis dispositivos en línea aparecen sin conexión en el centro de SmartThings · Some of my online devices appear offline in the SmartThings hub
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Networks
- Brand
- Samsung
- Product type
- Smart lighting and home hubs
Known code variants
- Algunos de mis dispositivos en línea aparecen sin conexión
- Devices connected to my SmartThings hub appear offline
- Dispositivos conectados a SmartThings aparecen sin conexión
- SmartThings device disconnected or offline
- SmartThings device offline
- Some of my online devices appear offline
What it means
Samsung official support guides "Some of my online devices appear offline in the SmartThings hub", "Devices connected to my SmartThings hub appear offline", and TSG10007366 for the Samsung SmartThings Hub and SmartThings Home Hub family explain how to troubleshoot connected lights and sensors showing offline in the app. Other models or wireless protocols may behave differently, and this offline status alone never proves the hub or light fixture is defective.
Warnings and stop conditions
- Mediumsource verified
Deleting an offline device via Devices > press and hold > Edit > Delete Device erases its pairing and SmartThings app settings; check power, distance, and hub restart first.
Evidence: Algunos de mis dispositivos en línea aparecen sin conexión en el centro de SmartThings · Some of my online devices appear offline in the SmartThings hub
- Mediumsource verified
Never open a smart bulb, hub, driver, or power supply (technician only), and leave hardwired luminaires, wall switches, dimmers, and mains wiring to a licensed electrician; if any device is hot, swollen, smoking, or smells of burning, unplug it if safe and stop using it.
Evidence: SmartThings device does not respond or the status is disconnected or incorrect
Symptoms and causes
Probable causes · in order
- Removed Zigbee repeater node or excessive distance and obstacles to the hubCommon
Samsung explains that unplugging another device that acted as a Zigbee repeater between the hub and the affected unit, or having obstacles in between, breaks the connection.
Evidence: Algunos de mis dispositivos en línea aparecen sin conexión en el centro de SmartThings · Some of my online devices appear offline in the SmartThings hub
- Wi-Fi router proximity or channel overlap with SmartThings Zigbee channels 14-25Possible
In TSG10007366 Samsung notes that stacking the SmartThings Hub on a Wi-Fi router or using Wi-Fi channels other than 1, 6, or 11 can interfere with Zigbee channels 14-25.
Evidence: SmartThings device does not respond or the status is disconnected or incorrect
- Wi-Fi AP change, 5 GHz-only band, or hidden SSID on SmartThings Home HubPossible
When all devices connected to a SmartThings Home Hub appear offline after changing Wi-Fi, Samsung states the AP must support 2.4 GHz, keep its SSID visible, and be updated in the app.
Evidence: Los dispositivos conectados a SmartThings aparecen sin conexión · Devices connected to my SmartThings hub appear offline
Virtual technician
Does Some online devices appear offline still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
SmartThings device does not respond or the status is disconnected or incorrect
Samsung · 2026 · official_doc
- 2
Algunos de mis dispositivos en línea aparecen sin conexión en el centro de SmartThings
Samsung · 2026 · official_doc
- 3
Some of my online devices appear offline in the SmartThings hub
Samsung · 2026 · official_doc
- 4
Los dispositivos conectados a SmartThings aparecen sin conexión
Samsung · 2026 · official_doc
- 5
Devices connected to my SmartThings hub appear offline
Samsung · 2026 · official_doc
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