ErrorBase
Independent technical referenceOfficial site
  • Networks
  • Fibre routers

SERVICE-ROJO-FIJO

AT&T SERVICE-ROJO-FIJO on BGW320 gateway: overheating or hardware issue

Verified with sources3 sourcesReviewed Oct 3, 2026
Technician coming? See the 2 steps they must show you
Fibre Wi-Fi router with antennas
Solijon SolayevCC BY-SA 4.0Image source

Risk level

Medium

Proceed carefully and stop if the check is unclear.

Urgency

Medium

Quick answer

A solid red Service light on the AT&T BGW320 means overheating or a hardware issue. Place it on a flat surface with open space around, above and below it, then restart it.

Safety first

Stop and check this first

  • Do not leave the gateway on carpet, inside closed furniture or with objects on top while it shows solid red: AT&T links it to overheating.
  • Do not use the Reset button for 10 seconds to restart: that returns the gateway to factory settings.

Safe checks you can perform

  • Look at the WPS LED
  • Location and ventilation
  • Gateway restart
  • Report to AT&T

Leave these tasks to a qualified professional

  • Do not attempt this professional task: Confirm the diagnosis before replacing
  • Do not attempt this professional task: Gateway replacement for hardware

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.

  1. Confirm the diagnosis before replacing

    What they doAT&T checks the gateway state and the light combination after moving and restarting it.

    They must show youthe WPS LED state and the restart result.

    In writingwhether the diagnosis is temperature or hardware.

  2. Gateway replacement for hardware

    What they doIf the hardware issue persists after the restart, AT&T replaces the gateway.

    They must show youthe new gateway with the Service light solid white.

    In writingthe serial number removed 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.

  1. Look at the WPS LED

    No special tools

    Who:
    you.
    How:
    With the Service light solid red, look at the WPS button LED.
    Result that matters:
    Whether the WPS LED is off or solid red.
    If WPS is off:
    AT&T puts it down to overheating; check the location.
    If WPS is solid red:
    AT&T puts it down to hardware; restart and, if it persists, contact AT&T.
    Evidence to keep:
    A photo of both lights.

    Evidence: BGW320 Wi-Fi Gateway What Do the Lights Mean?

  2. Location and ventilation

    No special tools

    Who:
    you.
    How:
    Place the gateway on a flat surface, no carpet, with open space around, above and below it, as AT&T asks.
    Result that matters:
    Whether the light stops being solid red after a while.
    If it returns to solid white:
    temperature was the cause.
    If it stays red:
    restart the gateway.
    Evidence to keep:
    Photos of how it was and how you leave it.

    Evidence: BGW320 Wi-Fi Gateway What Do the Lights Mean? · Learn about your All-Fi Hub (BGW320)

  3. Gateway restart

    No special tools

    Who:
    you.
    How:
    Unplug the power from the back, wait 20 seconds and plug it back in, or use Restart in Smart Home Manager. Startup can take up to 10 minutes.
    Result that matters:
    The Service light colour at the end.
    If it is solid white:
    the gateway recovered.
    If solid red returns with WPS red:
    AT&T says it needs replacement.
    Evidence to keep:
    Time of the restart and final colour.

    Evidence: BGW320 Wi-Fi Gateway What Do the Lights Mean? · Restart Your AT&T Wi-Fi Gateway or Modem

  4. Report to AT&T

    No special tools

    Who:
    you, through AT&T support.
    How:
    Explain the light combination (Service and WPS), that the gateway is well ventilated and that you restarted.
    Result that matters:
    That AT&T confirms the diagnosis and arranges a replacement if needed.
    If they confirm a hardware fault:
    AT&T handles the new gateway.
    If they point to another cause:
    note what they tell you.
    Evidence to keep:
    Case number and date.

    Evidence: BGW320 Wi-Fi Gateway What Do the Lights Mean?

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
AT&T
Product type
Fibre routers

Known code variants

  • at&t all-fi hub solid red
  • at&t gateway solid red
  • att bgw320 hardware issue red light
  • att bgw320 solid red light
  • att gateway overheating
  • bgw320 rojo fijo

What it means

AT&T separates two cases of a solid red Service light on the BGW320 by the WPS LED: with WPS off, the gateway sits somewhere that makes it overheat; with WPS also solid red, there is a hardware issue, and if a reboot does not fix it the unit needs replacing. The guide asks for a flat surface, no carpet, with space around it to cool. Solid red alone does not prove the gateway is faulty: temperature must be ruled out first.

Warnings and stop conditions

  • Mediumsource verified

    Do not leave the gateway on carpet, inside closed furniture or with objects on top while it shows solid red: AT&T links it to overheating.

    Evidence: BGW320 Wi-Fi Gateway What Do the Lights Mean?

  • Lowsource verified

    Do not use the Reset button for 10 seconds to restart: that returns the gateway to factory settings.

    Evidence: Reset Your Wi-Fi Gateway to Original Settings

Symptoms and causes

Probable causes · in order

  • Overheating from its locationCommon

    AT&T assigns it to solid red with the WPS LED off. Confirmed if it improves once moved to a flat, clear surface.

    Evidence: BGW320 Wi-Fi Gateway What Do the Lights Mean? · Learn about your All-Fi Hub (BGW320)

  • Hardware issuePossible

    AT&T assigns it to solid red with the WPS LED also solid red. Confirmed if a reboot does not clear it.

    Evidence: BGW320 Wi-Fi Gateway What Do the Lights Mean?

Virtual technician

Does SERVICE-ROJO-FIJO 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.

Start diagnosis

Sources and technical references

  1. 1

    BGW320 Wi-Fi Gateway What Do the Lights Mean?

    AT&T · 2023 · manual

  2. 2

    Learn about your All-Fi Hub (BGW320)

    AT&T · 2026 · official_doc

  3. 3

    Restart Your AT&T Wi-Fi Gateway or Modem

    AT&T · 2026 · official_doc

Sources: BGW320 Wi-Fi Gateway What Do the Lights Mean? · Learn about your All-Fi Hub (BGW320) · Restart Your AT&T Wi-Fi Gateway or Modemreviewed 2026-10-03 · verified

Was this entry useful?