- Networks
- Smart lighting and home hubs
Flashing (every 4 seconds)
Nanoleaf Flashing (every 4 seconds): panels lost Wi-Fi
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Medium
Quick answer
A controller LED flashing every 4 seconds on Nanoleaf Shapes, Elements, Lines, or Light Panels (or 4s on, 4s off on Canvas) means it was connected to Wi-Fi but cannot reconnect. Check that your router uses WPA/WPA2, delete the device in the app, reset, and pair again.
Safety first
Stop and check this first
- Always delete the device from the Nanoleaf App before resetting the controller: Nanoleaf warns that resetting clears Wi-Fi and all saved pairing configurations, although your saved scenes remain.
- Never open the controller, processor, or power supply unit; if any component feels hot, swollen, smoky, or smells of burning, unplug it immediately if safe and stop using it.
Safe checks you can perform
- Distinguish the 4-second flash from the 1-second timeout blink
- Check that router security remains on WPA/WPA2 rather than WPA3-only
- Delete from the Nanoleaf App, run the model reset, and pair again
Leave these tasks to a qualified professional
- Do not attempt this professional task: Verify the 4-second controller LED pattern and WPA/WPA2 router configuration
- Do not attempt this professional task: Execute app removal, model-specific button reset, and Wi-Fi re-pairing
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.
Verify the 4-second controller LED pattern and WPA/WPA2 router configuration
What they doThe technician confirms the 4-second flash on Shapes, Elements, Lines, or Light Panels (or 4s on, 4s off on Canvas) as distinct from the 1-second timeout state, and checks that the router uses WPA/WPA2 security rather than WPA3-only.
They must show youthe verified 4-second LED pattern on the controller and the WPA/WPA2 security setting on the router.
In writingNanoleaf model family, LED blink interval observed, and confirmed WPA/WPA2 router security protocol.
Execute app removal, model-specific button reset, and Wi-Fi re-pairing
What they doThe professional ensures the device is deleted from the Nanoleaf App first, performs the documented button reset for the model family (Power and + for 15s on Shapes/Elements, 10s pin reset on Lines, or Effect Select and Power for 10s on NL22 Light Panels), and sets up Wi-Fi pairing again.
They must show youremoval of the device in the Nanoleaf App, the controller LED response during reset, and the LED turning off once connected to Wi-Fi.
In writingreset method completed, re-pairing result, and diagnostic details for a Nanoleaf Connectivity ticket if unresolved.
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.
Distinguish the 4-second flash from the 1-second timeout blink
- Who:
- you, observing the status LED on your Nanoleaf controller or processor.
- How:
- check the LED on the power button for Shapes or Elements, above the reset button on Lines, beside the two buttons on Light Panels (Aurora), or on the Canvas power button to confirm it flashes every 4 seconds rather than every 1 second (which means pairing timed out 30 minutes after power-on).
- Result that matters:
- confirm the cannot-reconnect LED state before resetting your pairings.
- If the LED flashes every 1 second instead:
- unplug the device and plug it back in as Nanoleaf specifies for a 30-minute timeout.
- If the LED flashes every 4 seconds (or 4s on, 4s off on Canvas):
- inspect your router's WPA/WPA2 setting next.
- Evidence to keep:
- observed flash interval and the specific Nanoleaf product family.
Evidence: FAQ | Product > Controller LED Light Indicators
Check that router security remains on WPA/WPA2 rather than WPA3-only
- Who:
- you, reviewing the Wi-Fi security settings on your home router.
- How:
- verify whether the router security protocol was changed to WPA3-only; if so, set the Wi-Fi network back to WPA/WPA2 so the Nanoleaf panels can authenticate and reconnect.
- Result that matters:
- rule out authentication failure caused by a WPA3-only router setting.
- If the panels reconnect once the router is set to WPA/WPA2 (status LED turns off):
- keep the network on WPA/WPA2.
- If the 4-second flashing continues on a WPA/WPA2 network:
- delete the device from the Nanoleaf App and perform the reset procedure.
- Evidence to keep:
- router Wi-Fi security protocol setting and controller LED behavior after setting WPA/WPA2.
Evidence: FAQ | Product > Controller LED Light Indicators · FAQ | Technical > WPA3 WiFi Compatibility & Router Settings
Delete from the Nanoleaf App, run the model reset, and pair again
- Who:
- you, with access to the Nanoleaf App and your device's controller or processor.
- How:
- delete the device from the Nanoleaf App first, noting that resetting clears Wi-Fi and saved pairing configurations while saved scenes remain; then hold Power and + for about 15 seconds on Wi-Fi panel products (Shapes, Elements) until the LEDs flash and the Power LED stays steady, or press the Lines processor reset button with a pin for 10 seconds until rapid flashing, or hold Effect Select and Power for 10 seconds on legacy NL22 Light Panels, and pair again.
- Result that matters:
- complete the official reset and re-pairing sequence documented for the 4-second flash.
- If the status LED turns off after re-pairing:
- Wi-Fi connectivity is restored.
- If the device still cannot reconnect after resetting on WPA/WPA2:
- submit a Connectivity ticket to Nanoleaf Support.
- Evidence to keep:
- confirmation of app deletion prior to reset, button reset used for your model, and re-pairing outcome.
Evidence: FAQ | Product > Controller LED Light Indicators · Pairing Again > Reset Guide > Wall Decor | Panel Products · FAQ | Technical > WPA3 WiFi Compatibility & Router Settings
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
- Nanoleaf
- Product type
- Smart lighting and home hubs
Known code variants
- Flashing every 4 seconds
- LED parpadea cada 4 segundos
- Nanoleaf LED flashing every 4s
- Power LED Flashing (4 seconds on, 4 seconds off)
- Power LED Flashing 4 seconds on 4 seconds off
What it means
Nanoleaf's official "FAQ | Product > Controller LED Light Indicators" assigns "Flashing (every 4 seconds)" on Shapes, Elements, Lines, and Light Panels (Aurora), as well as "Power LED Flashing (4 seconds on, 4 seconds off)" on Canvas, to a device that was connected to Wi-Fi but cannot reconnect, supported by "Pairing Again > Reset Guide > Wall Decor | Panel Products" and "FAQ | Technical > WPA3 WiFi Compatibility & Router Settings". Other Nanoleaf lighting lines may use different status signals, and this indicator alone never proves a part has failed.
Warnings and stop conditions
- Mediumsource verified
Always delete the device from the Nanoleaf App before resetting the controller: Nanoleaf warns that resetting clears Wi-Fi and all saved pairing configurations, although your saved scenes remain.
Evidence: Pairing Again > Reset Guide > Wall Decor | Panel Products
- Highsource verified
Never open the controller, processor, or power supply unit; if any component feels hot, swollen, smoky, or smells of burning, unplug it immediately if safe and stop using it.
Evidence: FAQ | Product > Controller LED Light Indicators
Symptoms and causes
Probable causes · in order
- Previous Wi-Fi connection lost and unable to reconnectCommon
The controller status LED indicates that the Nanoleaf product was previously connected to Wi-Fi but cannot re-establish the connection.
Evidence: FAQ | Product > Controller LED Light Indicators
- Router security switched to WPA3-only after pairingPossible
Nanoleaf states that its products support WPA/WPA2 only and that switching a router to WPA3-only after pairing disconnects the panels and blocks reconnection.
Evidence: FAQ | Technical > WPA3 WiFi Compatibility & Router Settings
Virtual technician
Does Flashing (every 4 seconds) 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
FAQ | Product > Controller LED Light Indicators
Nanoleaf · 2026 · official_doc
- 2
Pairing Again > Reset Guide > Wall Decor | Panel Products
Nanoleaf · 2026 · official_doc
- 3
Preguntas frecuentes | Técnico > Compatibilidad WiFi WPA3 y Configuración del Router
Nanoleaf · 2026 · official_doc
- 4
FAQ | Technical > WPA3 WiFi Compatibility & Router Settings
Nanoleaf · 2026 · official_doc
Was this entry useful?