- Networks
- Fibre routers
FIBRA-ROJO
Orange FIBRA-ROJO on fibre router: no signal or fibre badly connected

Risk level
Low
Usually safe to check without specialist tools.
Urgency
Medium
Quick answer
The Fibre light on your Orange Livebox Fibra is red: there is no signal or the fibre is badly connected. Check the fibre cable is fully inserted in the router's orange port and in the optical wall socket, then restart the router if needed.
Safety first
Stop and check this first
- Do not use the Reset button for this light: Orange describes it as restoring factory values, not as a fix for missing signal, and you would lose your settings.
Safe checks you can perform
- Fibre cable in the orange port and the wall socket
- Restart the router
- Report it to Orange
Leave these tasks to a qualified professional
- Do not attempt this professional task: Measure the fibre signal at the wall socket
- Do not attempt this professional task: Replace the router only with evidence
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.
Measure the fibre signal at the wall socket
What they doThe Orange technician uses an optical power meter to measure the signal reaching the optical wall socket and the router.
They must show youthe reading against Orange's required value.
In writingwhere the signal is lost and what was repaired.
Replace the router only with evidence
What they doIf the signal reaches the socket correctly and the light stays red, the technician considers the patch cable or the router.
In writingthe reading, the part replaced and the reason.
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.
Fibre cable in the orange port and the wall socket
- Who:
- you.
- How:
- at the back of the Livebox Fibra, check the fibre cable is fully inserted in the orange FIBRE port and, at the other end, in the optical wall socket (PTRO).
- Result that matters:
- whether the Fibre light leaves red.
- If it blinks orange or turns solid green:
- the fibre is connected; wait for password validation.
- If it stays red:
- the connection does not explain it; restart the router.
- Evidence to keep:
- a photo of the light and both cable ends.
Evidence: Todo lo que debes saber sobre tu router Livebox Fibra
Restart the router
- Who:
- you.
- How:
- restart the Livebox from the Mi Orange app (Configuration, Restart) or switch it off and on with the ON/OFF button.
- Result that matters:
- the Fibre light colour once startup finishes.
- If it is solid green:
- the fibre link is active.
- If red returns:
- there is still no signal; report it to Orange.
- Evidence to keep:
- time of the restart and the final light colour.
Evidence: Todo lo que debes saber sobre tu router Livebox Fibra
Report it to Orange
- Who:
- you.
- How:
- contact Orange customer service through its official channels and explain the Fibre light is red with the cable properly connected and after a restart.
- Result that matters:
- that Orange checks the signal on your line.
- If they find a line fault:
- the repair is Orange's responsibility.
- If they ask for a remote test:
- the Service button allows temporary remote access to the settings.
- Evidence to keep:
- ticket number and date.
Evidence: Todo lo que debes saber sobre tu router Livebox Fibra
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
- Orange
- Product type
- Fibre routers
Known code variants
- jazztel fibra rojo sin internet
- jazztel fibre light red
- jazztel livebox fibra red light
- jazztel livebox fibra rojo
- jazztel luz fibra roja
- jazztel red fiber light no internet
- jazztel router red light
- livebox fibra jazztel luz roja
- livebox fibra luz roja
- Livebox fibra rojo
- luz fibra roja livebox
- luz roja router jazztel fibra
- Orange Livebox Fibra red fibre light
- router jazztel luz roja
- router orange luz roja fibra
What it means
Orange explains that on the Livebox Fibra a red Fibre light means there is no signal or the fibre is incorrectly connected. When the fibre is properly connected the light blinks orange while the Internet password is validated and turns solid green once the fibre (GPON) link is active. Red does not say whether the fault is in the cable, the socket or the network, and does not prove the router is faulty.
Warnings and stop conditions
- Loweditorial warning
Do not use the Reset button for this light: Orange describes it as restoring factory values, not as a fix for missing signal, and you would lose your settings.
Evidence: Todo lo que debes saber sobre tu router Livebox Fibra
Symptoms and causes
Probable causes · in order
- Fibre cable out of the port or badly seatedCommon
The cable is not fully inserted in the orange FIBRE port or in the optical wall socket. Confirmed if the light turns orange or green once seated.
Evidence: Todo lo que debes saber sobre tu router Livebox Fibra
- No signal on the linePossible
With the cable properly connected, red means no fibre signal arrives. Only Orange can check where it is lost.
Evidence: Todo lo que debes saber sobre tu router Livebox Fibra
Virtual technician
Does FIBRA-ROJO 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
Todo lo que debes saber sobre tu router Livebox Fibra
Orange España · 2026 · official_doc
Was this entry useful?