- Networks
- Fibre routers
FIBRA-VERDE-INTERMITENTE
MásMóvil FIBRA-VERDE-INTERMITENTE on Livebox 6s: registering
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Medium
Quick answer
On the MásMóvil Livebox 6s, the green Fibra light blinking fast means the router is registering or the ONT password is incorrect; blinking slowly means it is updating. Wait, switch it off and on with On/Off and run the self-diagnosis.
Safety first
Stop and check this first
- MásMóvil charges 72.60 euros (VAT included) for a fault call-out if the fault is not theirs: run the self-diagnosis first and ask them to confirm the cause.
- The Reset button (5 seconds) restores the Livebox 6s to factory values and erases your changes; do not use it for this light unless MásMóvil asks you to.
- If MásMóvil gives you an ONT password, enter only that one: never try passwords from elsewhere or attempt to bypass the operator's authentication.
Safe checks you can perform
- Watch the blink speed
- Check the Alarma light
- Switch off and on with the On/Off button
- Self-diagnosis in Yo soy Más
Leave these tasks to a qualified professional
- Do not attempt this professional task: Registration check with MásMóvil
- Do not attempt this professional task: MásMóvil technician visit
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.
Registration check with MásMóvil
What they doMásMóvil customer service checks why the Livebox 6s does not finish registering on the fibre network and whether the ONT password linked to your line is correct.
They must show youthe registration status of your router on their network and the line test from the exchange.
In writingthe ticket number, the diagnosis and whether the router must be replaced.
MásMóvil technician visit
What they doIf the remote check does not fix it, a MásMóvil technician checks the router, the wall socket and the fibre at home and measures the optical power reaching the device.
They must show youthe optical power reading at the router and the result of their test.
In writingthe measured power value, the cause, whether the fault is MásMóvil's and whether the visit is charged.
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.
Watch the blink speed
- Who:
- you.
- How:
- watch the Fibra light for a few seconds: fast blinking is registration or an incorrect ONT password; slow blinking, like on the Alarma and Internet lights, is an update.
- Result that matters:
- knowing whether to wait for an update or keep checking.
- If slow blinking:
- wait for the update to finish before touching anything.
- If fast blinking:
- continue with the next steps.
- Evidence to keep:
- short video of the Fibra, Alarma and Internet lights.
Evidence: Información básica del router Livebox 6s
Check the Alarma light
- Who:
- you.
- How:
- look at the red Alarma light: off means the fibre is properly connected; fast blinking red means fibre not connected or not enough optical power, which is a different case.
- Result that matters:
- ruling out a physical fibre problem before blaming registration.
- If Alarma off:
- the fibre signal arrives and the problem is registration.
- If Alarma blinking red:
- check the fibre cable is seated in the green port and the wall socket, without bending it and never looking into the connector end.
- Evidence to keep:
- photo of the front with the Fibra and Alarma lights.
Evidence: Información básica del router Livebox 6s
Switch off and on with the On/Off button
- Who:
- you.
- How:
- if the router is on a power strip, make sure it is on; press the red On/Off button, wait a few seconds, press it again and let the lights settle.
- Result that matters:
- the Fibra light and the Internet light both staying solid green.
- If Fibra and Internet solid green:
- the connection works again.
- If the Fibra light keeps blinking fast:
- run the self-diagnosis.
- Evidence to keep:
- time of the restart and the state of the lights afterwards.
Evidence: Información básica del router Livebox 6s · No funciona Internet en casa
Self-diagnosis in Yo soy Más
- Who:
- you.
- How:
- in the Yo soy Más app or customer area, go to Cuenta, Ayuda and Comprobar estado; from there you can report the fault or contact customer service.
- Result that matters:
- MásMóvil checking your line and logging the fault.
- If the self-diagnosis finds a fault:
- follow its instructions and keep the reference.
- If it finds nothing and the light is unchanged:
- contact customer service.
- Evidence to keep:
- screenshot of the self-diagnosis result and the ticket number.
Evidence: No funciona Internet en casa
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
- MásMóvil
- Product type
- Fibre routers
Known code variants
- Livebox 6s luz fibra verde parpadeando
- Livebox 6s ONT password incorrect light
- Livebox 6s ZTE fibra parpadea verde sin internet
- Livebox 6s ZTE fibre light flashing
- MasMovil Livebox 6s fibre light blinking green
- MASMOVIL Livebox 6s ONT password incorrecta
- MásMóvil luz fibra parpadea rápido
- MasMovil router fibre light blinking no internet
- MásMóvil router luz fibra intermitente
What it means
In MásMóvil's official Livebox 6s (ZTE) light table (the page is in Spanish), the Fibra light is green with two blink patterns. Fast blinking means device registering or ONT password incorrect: the router is trying to register on the GPON fibre network and has not succeeded yet. Slow blinking means the device is updating. Solid green confirms successful registration with GPON available. It applies to the Livebox 6s with built-in ONT supplied by MásMóvil. The light alone never proves the router is faulty.
Warnings and stop conditions
- Mediumsource verified
MásMóvil charges 72.60 euros (VAT included) for a fault call-out if the fault is not theirs: run the self-diagnosis first and ask them to confirm the cause.
Evidence: No funciona Internet en casa
- Lowsource verified
The Reset button (5 seconds) restores the Livebox 6s to factory values and erases your changes; do not use it for this light unless MásMóvil asks you to.
Evidence: Información básica del router Livebox 6s
- Lowsource verified
If MásMóvil gives you an ONT password, enter only that one: never try passwords from elsewhere or attempt to bypass the operator's authentication.
Evidence: Información básica del router Livebox 6s
Symptoms and causes
Probable causes · in order
- Registration on the fibre network in progressCommon
MásMóvil says fast blinking appears while the device registers; when it succeeds, the Fibra light stays solid green with GPON available.
Evidence: Información básica del router Livebox 6s
- Incorrect ONT passwordPossible
The same fast blinking can mean the configured ONT password is wrong, so the network does not accept the router's registration.
Evidence: Información básica del router Livebox 6s
- Router updatePossible
If the blinking is slow, MásMóvil says the device is updating; in that case the Alarma and Internet lights may also blink slowly.
Evidence: Información básica del router Livebox 6s
Virtual technician
Does FIBRA-VERDE-INTERMITENTE 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
Información básica del router Livebox 6s
MASMOVIL · 2026 · official_doc
- 2
MASMOVIL · 2026 · official_doc
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