Troubleshooting & safety

What your broadband hub lights mean

What your broadband hub lights mean

Wait, restart or report: how to read any hub

Every broadband hub (the router your provider sends you) uses a light to show what it's doing, but each brand uses its own colours. White means "all good" on a Sky Max Hub but "on mobile backup" on a BT Smart Hub 3, and solid amber is routine on one TalkTalk hub and a failure on another. So the key rule here is: find your exact hub model and use that row only.

Almost every light means one of three things:

  • Wait. The hub is starting up, connecting or updating. Providers give a time to wait for each of these, and Sky says not to turn the hub off at all while it installs a software update.
  • Restart. The hub has stayed on a start-up colour longer than its provider says it should, or shows a "not connected" colour.
  • Report. A restart (and a reset, where the provider suggests one) hasn't helped. Use your provider's test or fault tool.

All meanings below come from each provider's own help pages, checked October 2026. If your hub shows something not listed, use the provider's official light guide linked in that section.

BT Smart Hub lights

BT's guide covers several generations of hub. If you're not sure which you have, check the hub itself or your order details.

BT Smart Hub 3

Light

What BT says it means

What to do

Solid green

Starting up

Wait. If it's still solid green after 5 minutes, check you're using the power adapter that came with the hub, then reboot it.

Flashing orange

Connecting to broadband

Wait at least 3 minutes. It should turn solid blue. If it doesn't, check the broadband cable and any filter.

Solid blue

Working and online

Nothing. If one device still won't connect, BT suggests switching that device off and on.

Solid white

Connected to mobile through Hybrid Connect (BT calls this resilience mode)

You're online over a mobile connection rather than your broadband line.

Solid orange

Working but not connected to the internet

Restart the hub and check your line activation date. If it's still not working, contact BT.

No light

Power is off, or the lights have been turned off in Hub Manager (the hub's settings page)

Check the power, or check the light setting in Hub Manager.

Hybrid Connect is BT's mobile backup. A white light means you're online over mobile rather than your broadband connection; on the Smart Hub 2, BT says this can be because the broadband isn't set up yet or has a problem. For other backup options, see our guide to keeping a backup broadband connection.

BT Smart Hub 2

BT says the Smart Hub 2 usually takes about four minutes to sync after you first plug it in, so give it that long before judging the colour.

Light

What BT says it means

What to do

Blue

Connected

Nothing.

Green

Starting up

Wait at least three minutes. Then turn it off and on; if that fails, factory reset it with a paper clip; then contact BT.

Flashing orange

Connecting

Wait at least three minutes.

Flashing purple

Working, but the broadband cable isn't connected

On Full Fibre, check the red-ended Ethernet cable is in the Openreach modem's PORT and, at the hub end, in the red WAN port (or yellow Ethernet Port 4 if there isn't one). You should hear a click. Finally, make sure the hub is configured in Full Fibre mode. On part-fibre, check the grey-ended broadband cable and the filter.

Orange

Working but not connected to the internet

Connect a device and follow the on-screen help wizard.

Red

A problem somewhere

Restart, then factory reset, then contact BT.

Purple

Online through EE's mobile network using Hybrid Connect

BT says this may be because your broadband isn't set up yet or has a problem.

The "Openreach modem" BT mentions is the separate box the fibre plugs into on a full fibre connection, also known as an ONT (optical network terminal). It has its own set of lights, which our guide to full fibre equipment and the ONT explains.

Older BT Smart Hub and Ultrafast Smart Hub

On these models green means starting (about one and a half minutes), flashing orange means connecting (about 30 seconds), steady orange means working but not online (use the on-screen help wizard) and blue means all is well. BT says to contact it if there's no light with the power on. The full list is on BT's hub lights help page, and BT's current hubs and plans are on our BT broadband deals page.

Sky hub lights

Sky's light guide covers five hubs: Sky Gigafast+ Hub, Sky Max Hub (UK only), Sky Broadband Hub, Sky Q Hub and Sky Hub. We cover the first three. For the Sky Q Hub and the older Sky Hub, and for anything not listed here, use Sky's own light guide.

Sky Max Hub and Sky Gigafast+ Hub

Both hubs show amber, flashing amber or flashing green for a few minutes when first turned on, which is normal. Don't confuse that with the "Flashing green" option in Sky's menu: Sky's answer for it is a quickly flashing light because someone has held the Reset button, shown in the table below. Sky's Gigafast+ colours link to the same answers as the Max Hub, so this table covers both. (Sky lists fewer colours for the Gigafast+ Hub, without the slowly flashing green or blue options.)

Light

What Sky says it means

What to do

White

Working and connected to the internet

Nothing.

Amber

Powering up

Wait a few minutes; it turns white when connected.

Flashing amber

Authenticating

Wait a few minutes; it turns white when connected.

Slowly flashing green

Authenticated and nearly ready

If it's still flashing after 5 minutes, switch the hub off and on at the socket, then use Sky's Service Checker.

Quickly flashing green

Resetting, because the Reset button was held for five seconds

Don't unplug it. Holding Reset for more than 12 seconds factory resets the hub.

Flashing green and amber

Installing a software update, usually about 15 minutes

Wait. Don't turn the hub off. It turns white when finished.

Flashing blue

WPS mode (Wi-Fi Protected Setup, the button-press way to join a device), for 2 minutes

To try again, hold WPS for 3 seconds. Holding it for 30 seconds or more factory resets the hub.

Red

There might be a problem

Report: sign in to Sky's Service Checker, which tests the connection and shows how to fix a fault.

Off

Lights off: Sky's steps start with the power supply

Switch off at the mains, check the power cable and socket, switch on and wait a few minutes. Still off? Run Sky's tests.

Sky Broadband Hub

On the Sky Broadband Hub, start with the power light:

  • Red: there might be a fault with the hub. Sign in to Service Checker.
  • Flashing green: a software update, usually about 15 minutes. Don't turn it off.
  • Flashing amber: recovery mode, which can happen after a software update. If it's still flashing after 15 minutes, hold the Reset button for 10 to 30 seconds. Sky warns that this puts the Wi-Fi password back to the default printed on the hub.
  • Solid green: the power side is fine. Sky's guide then asks what colour the internet light is, so carry on in the official guide from there.

Sky's plans are on our Sky broadband deals page.

Virgin Media Hub lights

Virgin Media's light guide covers the Hub 5, Hub 4, Hub 3 and the older Super Hub 2 and 2ac. The Hub 5 has a single light at the bottom right of the front. The Hub 4 has one light that circles the top quarter of the hub. Most of Virgin's answers are the same for both, but the white lights differ: the Hub 4 has a "dimmed white" light that the Hub 5 doesn't. If yours isn't covered below, use Virgin Media's hub lights guide.

Virgin Media Hub 5 and Hub 4

Light

What Virgin Media says it means

What to do

Solid white

Hub 5: everything is okay. Hub 4: Virgin's solid-white answer says this is normal for the first minute or so after you first turn the hub on.

Nothing.

Dimmed white (Hub 4 only)

Everything is okay; this is what you'll see when the Hub 4 is working normally

Nothing.

Flashing white

Booting up

Wait at least 5 minutes, and check the cables are pushed in firmly.

Flashing red

Started up, but may not have registered on the Virgin Media network

Restart at the wall, check the cables and allow 5 to 10 minutes. Still flashing red? Factory reset it, then test your broadband.

Solid red

A possible cable problem, or the hub is too hot

Switch off, stand the hub in the open with vents uncovered, check the cables and let it cool for 15 minutes. Switch on and allow 5 to 10 minutes. Still red and not warm? Factory reset it.

Slowly flashing green

Downloading a software update

Wait. It takes a few minutes to reboot once the download finishes.

Solid green

Modem mode: the hub isn't sharing Wi-Fi

Expected if you use your own router. If not, take it out of modem mode, or factory reset it.

Flashing blue, then solid blue

WPS (Wi-Fi Protected Setup, the button-press way to join a device): after you press the hub's WPS button it flashes blue slowly for 2 minutes, then goes solid blue for 20 seconds if a device connected

Nothing if it worked. Rapid blue flashing means WPS failed, so try again.

No light

The hub is off

Check the power supply, wall socket and the hub's power button. It can take 5 to 10 minutes to start, then turns white.

The Virgin factory reset is the pinhole button: press it with the tip of a pen for 10 seconds, then leave the hub 5 to 10 minutes to start up. Modem mode is how you use your own router with a Virgin hub. Our guide to using your own router explains what you gain and lose.

Virgin Media Hub 3 and Super Hub 2

The Hub 3 has separate lights, and most are meant to go off once it's working. Virgin says the power light flashes white at start-up and then stays white. The Wi-Fi, internet and phone lights flash, stay green for a few minutes while connecting, then turn off. A flashing green internet light can mean a software update, and the phone light may come on if there's a phone network problem.

On the Super Hub 2 and 2ac, the 5GHz, 2.4GHz and Ready lights should be solid blue, the Traffic light blinks blue with data, and the Power light stays on.

For any Virgin hub, its general advice is to switch off and on and check the cables, then run its broadband test, which can help with a fix or book an engineer. Virgin also says it owns the hubs it supplies and can swap faulty kit at no extra cost. Its plans are on our Virgin Media broadband deals page.

TalkTalk Wi-Fi Hub lights

TalkTalk describes solid orange or amber differently on the Wi-Fi Hub and the Wi-Fi Hub 3, so treat them as separate models.

TalkTalk Wi-Fi Hub

Light

What TalkTalk says it means

Blinking orange or amber

Starting up

Blinking orange and white

Connecting

Solid orange

Verifying the internet connection

Solid white

Connected

These meanings, and the steps below, come from TalkTalk's article why your TalkTalk router light is flashing orange. TalkTalk says orange, flashing or solid, usually means the router is updating or trying to reconnect, and in most cases it sorts itself out within 15 minutes. If it isn't solid white after 15 minutes, there may be a network or equipment problem. TalkTalk's order of checks is:

  1. Check TalkTalk's Service Status page for a known problem in your area.
  2. Run a connection test in My Connection. It can log a fault and give you a reference number.
  3. Check the cables, that the router is in the main phone socket rather than an extension, and any microfilters (small adaptors that split phone and broadband signals).
  4. Reset the router, or turn it off and on, then leave it 15 minutes.
  5. Still orange? There may be a router or line fault: contact TalkTalk through My Connection.

One important warning from TalkTalk: don't run a line test if medical or monitoring equipment is connected to your phone line. Contact TalkTalk instead.

TalkTalk Wi-Fi Hub 3

On the Wi-Fi Hub 3, TalkTalk says the "connected" light can be solid blue or solid white depending on the hub's design. Blinking amber means it's starting up and connecting to the fibre connection box. Blinking amber with white or blue means it's connecting to the internet. Solid amber means it failed to connect, and if that lasts more than 15 minutes, TalkTalk says to contact it.

So on this model solid amber is a "report" light, while on the older Wi-Fi Hub solid orange is just "verifying". The details are on TalkTalk's Wi-Fi Hub 3 help page.

The fibre connection box mentioned there is the separate box the fibre plugs into on a full fibre line, also called an ONT. It has its own lights, which aren't hub lights: see our full fibre ONT guide for what the box is and how to read it. TalkTalk's plans are on our TalkTalk broadband deals page.

Plusnet Hub Two lights

Plusnet's router lights page covers the Hub Two, Hub One, 2704n and 582n. The meanings below are for the Hub Two, from Plusnet's guide to setting up the Hub Two on Full Fibre. For the older routers, use Plusnet's router lights page.

Light

What Plusnet says it means

What to do

Blue

Connected

Nothing. The first connection may take a minute or two. If a device can't get online, restart that device.

Green

Starting up

Wait about three minutes, then restart or reset.

Orange

On but not connected

Connect a device and follow the on-screen steps; if that fails, reset.

Flashing orange

The Ethernet cable isn't connected

Check the red-ended Ethernet cable and try each port on the ONT, waiting a few minutes each time.

Red

There's a problem somewhere

Turn it off and on with the power button, then reset if it doesn't go blue.

Pink

Bridge Mode (modem only)

Bridge Mode isn't supported on Full Fibre. Turn it off in Hub Manager, or reset the hub.

No light

Power off, or lights turned off in Hub Manager

Check the power and the light setting.

If the light still isn't blue after those steps, Plusnet's help pages link to a Report a problem page. Plusnet's plans are on our Plusnet broadband deals page.

Restart or factory reset? Know the difference first

A restart (reboot, power cycle) is simply switching the hub off and on again, which is the first step most providers above suggest. A factory reset is different: Plusnet, for example, says it completely restores the hub to the settings it had when it arrived, so any changes you made to your settings need making again. For example:

  • Sky says resetting a Sky Broadband Hub puts the Wi-Fi password back to the default printed on the hub, so any device that used a password you set will need reconnecting.
  • On the Sky Max Hub, holding Reset for more than 12 seconds, or WPS for 30 seconds or more, factory resets it. That's easy to do by accident.
  • Virgin Media says a factory reset takes the Hub 5 and Hub 4 out of modem mode, which matters if your own router sits behind it.

So restart first, reset only when your provider's steps say to, and note your Wi-Fi name and password beforehand. Our guide to securing your router and Wi-Fi covers setting them up again.

Lights look fine but still no internet?

A "connected" colour means the hub is talking to your provider, not that every device is happy. BT (for a blue Smart Hub 3) and Plusnet (for a blue Hub Two) both say the problem may be the device, so restart that device first.

When the light means report a fault

Report the problem when a "problem" colour from the tables above is still showing after your provider's restart (and reset, if suggested) steps. Use the provider's own tool so the fault is logged: Sky's Service Checker, Virgin Media's broadband test, TalkTalk's My Connection, Plusnet's Report a problem page, or BT's sign-in Test your broadband tool, which BT says can restart your router or book an engineer. Have this ready:

  • Your hub model and the exact colour and pattern (solid, slow flash, fast flash), and how long it has shown.
  • What you've already tried, and anything that changed recently, such as moved cables or a new install.
  • Any fault reference number a test tool gave you.

Our guide to reporting a broadband fault explains what happens next. If an engineer is offered, ask whether the visit could be chargeable: TalkTalk, for example, says it may charge if no fault is found or the fault is inside your home. See our guide to engineer visit charges before you book.

If fault colours keep coming back and you're out of contract, it may be worth seeing what else your address can get. Our broadband providers hub explains who's who, and the comparison on our deals pages shows live offers for your postcode through our partner's widget. We don't switch you ourselves; any change is made with the new provider.

Hub lights FAQs

What does a flashing orange light on a BT Smart Hub mean?

On a BT Smart Hub 3 or Smart Hub 2, flashing orange means the hub is connecting to broadband, and BT says to give it at least three minutes. It should then turn blue. If a Smart Hub 3 doesn't, check the broadband cable and any filter. Solid orange is different: it means working but not online.

Why is my Sky hub light flashing amber?

On a Sky Max Hub or Gigafast+ Hub, flashing amber means authenticating, which Sky says can take a few minutes before the light turns white. On a Sky Broadband Hub, a flashing amber power light means recovery mode; if it lasts over 15 minutes, Sky says to hold Reset for 10 to 30 seconds.

How long should I wait before restarting my router?

It depends on the hub. BT says to give a Smart Hub at least three minutes on flashing orange (and on green for a Smart Hub 2); a Smart Hub 3 that is still solid green after 5 minutes needs checking. Virgin Media says at least five minutes while a Hub 5 flashes white, TalkTalk says orange usually clears within 15 minutes, and Sky says not to switch off during a software update.

Why is my TalkTalk router light orange?

On the TalkTalk Wi-Fi Hub, orange usually means the router is updating or reconnecting, and TalkTalk says it normally sorts itself out within 15 minutes. If not, it suggests checking its Service Status page and running a My Connection test. On the Wi-Fi Hub 3, solid amber means it failed to connect, and TalkTalk says to contact it if that lasts over 15 minutes.

Will a factory reset change my Wi-Fi password?

It can. A factory reset puts the hub back to the settings it had when it arrived, so changes you made are undone. Sky says resetting a Sky Broadband Hub restores the default Wi-Fi password printed on the hub, and Virgin Media says a reset takes its Hub 5 and Hub 4 out of modem mode. Try a simple restart first.

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