- Networks
- Fibre routers
SERVICE-ROJO-INTERMITENTE-RAPIDO
AT&T SERVICE-ROJO-INTERMITENTE-RAPIDO on BGW320 gateway: network service issue
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Medium
Quick answer
If the Service light on the AT&T BGW320 blinks red fast, AT&T says there is a network service issue that may need its intervention. First check for an outage in your area in Smart Home Manager or myAT&T.
Safety first
Stop and check this first
- To restart, unplug the power or use Restart: holding the Reset button for 10 seconds or more returns the gateway to factory settings and you lose your custom settings.
Safe checks you can perform
- Tell fast from slow blinking
- Outages in your area
- Gateway restart
- Report to AT&T
Leave these tasks to a qualified professional
- Do not attempt this professional task: Service check on AT&T's network
- Do not attempt this professional task: Measure the fiber before replacing the gateway
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.
Service check on AT&T's network
What they doAT&T checks the service status of your line from its network.
They must show youthe service status before and after their action.
In writingthe cause and the fix.
Measure the fiber before replacing the gateway
What they doIf a visit is needed, the AT&T technician measures the fiber signal reaching the gateway before replacing anything.
They must show youthe fiber reading and the Service light solid white at the end.
In writingthe part or section repaired and why.
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.
Tell fast from slow blinking
- Who:
- you.
- How:
- Watch the Service light. AT&T defines fast blinking as about 2 to 3 blinks per second and slow as about one blink every 2 seconds.
- Result that matters:
- The pace of the red blinking.
- If it is fast:
- this page applies.
- If it is slow:
- it is no broadband connection, with its own page.
- Evidence to keep:
- A short video of the light.
Evidence: BGW320 Wi-Fi Gateway What Do the Lights Mean?
Outages in your area
- Who:
- you, from a phone on mobile data.
- How:
- Open Smart Home Manager or myAT&T on your phone and check for a service outage in your area.
- Result that matters:
- Whether an outage appears.
- If there is one:
- wait for AT&T to fix it; do not reset the gateway.
- If not:
- restart the gateway.
- Evidence to keep:
- A screenshot of the check with date and time.
Evidence: BGW320 Wi-Fi Gateway What Do the Lights Mean?
Gateway restart
- Who:
- you.
- How:
- Unplug the power cord 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 is online again.
- If fast red returns:
- the problem is still on the network; contact AT&T.
- Evidence to keep:
- Time of the restart and final colour.
Evidence: Restart Your AT&T Wi-Fi Gateway or Modem
Report to AT&T
- Who:
- you, through AT&T support.
- How:
- Explain the Service light blinks red fast, there is no announced outage and you already restarted.
- Result that matters:
- That AT&T checks the service and acts on its network.
- If they fix it remotely:
- note the time and the change.
- If a technician is needed:
- keep the appointment details.
- 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 gateway red light blinking
- at&t service light flashing red
- att bgw320 blinking red fast
- att fiber gateway red light
- att router red light network issue
- bgw320 rojo parpadea
What it means
AT&T's BGW320 light guide assigns fast blinking red (about 2 to 3 blinks per second) to a network service issue that may need AT&T intervention and may be momentary. AT&T asks you to check for outages in your area and reboot the gateway. The light points to the network, not the device, and does not prove the gateway is faulty.
Warnings and stop conditions
- Lowsource verified
To restart, unplug the power or use Restart: holding the Reset button for 10 seconds or more returns the gateway to factory settings and you lose your custom settings.
Evidence: Reset Your Wi-Fi Gateway to Original Settings
Symptoms and causes
Probable causes · in order
- AT&T outage in your areaPossible
AT&T says it may be a momentary problem and asks you to check for an outage. Confirmed if Smart Home Manager or myAT&T shows one.
Evidence: BGW320 Wi-Fi Gateway What Do the Lights Mean?
- Passing fault cleared by a rebootPossible
AT&T asks you to try rebooting the gateway. Confirmed if the Service light turns solid white after the reboot.
Evidence: BGW320 Wi-Fi Gateway What Do the Lights Mean? · Restart Your AT&T Wi-Fi Gateway or Modem
- Network problem that needs AT&TPossible
If no outage is announced and the reboot changes nothing, the fix needs AT&T intervention.
Evidence: BGW320 Wi-Fi Gateway What Do the Lights Mean?
Virtual technician
Does SERVICE-ROJO-INTERMITENTE-RAPIDO 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
BGW320 Wi-Fi Gateway What Do the Lights Mean?
AT&T · 2023 · manual
- 2
Restart Your AT&T Wi-Fi Gateway or Modem
AT&T · 2026 · official_doc
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