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What do all the lights on my FTTP connection box mean?
Red or green, flashing or solid? What the different combinations mean.
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Details

Determining the status of your connection

The lights on your nbn™ FTTP Connection Box tell you about the status of your connection.

You may need to take the cover off to see the lights.

Lights

Power

Optical

Alarm

Uni-D1 to Uni-D4

 

uni-V 1/2

Update

Indicator

Off

Solid red

Solid green

Flashing green

Off

Solid Red

Solid green

Flashing green

Off

Solid Red

Solid Green

Off

Solid Yellow

Flashing Yellow

Solid Green

Flashing Green

Off

Green

Flashing Green

Off

Solid red

Flashing Green

Meaning

There is no power to your nbn Connection Box.

Your nbn connectioln box is operating on backup battery power.

Your power supply is working normally.

Your nbn connection box is starting up.

Something external has disabled your nbn Connection Box

Your nbn Connection Box has lost connection with the network.

Your nbn Connection Box is connected and working properly.

Your nbn Connection Box is working and there is normal activity on the network.

Your nbn connection box is working but you have no devices connected

Your nbn connection box is not working normally

Your nbn Connection Box is connected and working properly

There are no active Ethernet devices connected to this port at this time. Either no ports are in use, or all devices connected to these ports are off.

There is an active device detected on the network capable of operating at up to 1 gigabit per second (this denotes capability, not actual speed).

There is data activity of up to 1 gigabit per second detected on the network (this denotes capability, not actual speed).

There is an active device detected on the network capable of operating at up to 100 megabits per second (this denotes capability, not actual speed).

There is data activity of up to 100 megabits per second detected on the network network (this denotes capability, not actual speed).

Expected state for Central Telecoms services.

One or more telephone services are in use

One or more telephone services have been in use for over an hour

Status is normal

Your nbn connection box has failed to download a software update

Your nbn connection box is downloading a software update

Action

Check the nbn connection box is plugged in and switched on. If there is still no power light contact Central Telecoms Support on 1300 677 406

If there is a mains power failure, you will only have services over the nbn network for a limited period of up to five hours

No action required

Your nbn connection box is starting up.

Restart your nbn Connection Box and if that doesn't work, call Central Telecoms Support on 1300 677 406

Restart your nbn Connection Box and if that doesn't work, call Central Telecoms Support on 1300 677 406

No action required

No action required

No action required

Restart your nbn Connection Box and if that doesn't work, call Central Telecoms Support on 1300 677 406

No action required

If you’re having difficulty with connected devices, restart your devices, Gateway and nbn connection box. If a restart doesn't fix the problem, contact Central Telecoms Support on 1300 677 406

No action required

No action required

No action required

No action required

No action required

No action required

Check if someone in the office is using the phone, and if not, make sure all handsets are disengaged.

No action required

Contact Central Telecoms Support on 1300 677 406.

Wait for the download to be completed, then check your service again.

4
5

Light

Power

Optical

Alarm

Uni-D1 to Uni-D4

Uni-V 1/2

Update

Indicator

Off

Solid Red

Solid Green

Flashing Green

Off

Solid Red

Solid Green

Flashing green

Off

Solid Red

Solid Green

Off

Solid Yellow

Flashing Yellow

Solid Green

Flashing Green

Off

Green

Flashing Green

Off

Solid Red

Flashing Green

Meaning

There is no power to your nbn Connection Box.

Your nbn connection box is operating on backup battery power.

Your power supply is working normally.

Your nbn connection box is starting up.

Something external has disabled your nbn Connection Box

Your nbn Connection Box has lost connection with the network.

Your nbn Connection Box is connected and working properly.

Your nbn Connection Box is working and there is normal activity on the network.

Your nbn connection box is working but you have no devices connected

Your nbn connection box is not working normally

Your nbn Connection Box is connected and working properly

There are no active Ethernet devices connected to this port at this time. Either:

  • no ports are in use, or
  • all devices connected to these ports are off.

There is an active device detected on the network capable of operating at up to 1 gigabit per second (this denotes capability, not actual speed).

There is data activity of up to 1 gigabit per second detected on the network (this denotes capability, not actual speed).

There is an active device detected on the network capable of operating at up to 100 megabits per second (this denotes capability, not actual speed).

There is data activity of up to 100 megabits per second detected on the network network (this denotes capability, not actual speed).

Expected state for Central Telecoms services.

One or more telephone services are in use

One or more telephone services have been in use for over an hour

Status is normal

Your nbn connection box has failed to download a software update

Your nbn connection box is downloading a software update

Action

Check the nbn connection box is plugged in and switched on. If there is still no power light contact Central Telecoms Support at 1300 677 406.

If there is a mains power failure, you will only have services over the nbn network for a limited period of up to five hours

No action required

No action required, the flashing light will turn solid shortly

Restart your nbn Connection Box and if that doesn't work, call Central Telecoms Support on 1300 677 406

Restart your nbn Connection Box and if that doesn't work, call Central Telecoms Support on 1300 677 406

No action required

No action required

No action required

Restart your nbn Connection Box and if that doesn't work, call Central Telecoms Support on 1300 677 406

No action required

If you’re having difficulty with connected devices, restart your devices, Gateway and nbn connection box. If a restart doesn't fix the problem, contact Central Telecoms Support on 1300 677 406

No action required

No action required

No action required

No action required

No action required

No action required

Check if someone in the office is using the phone, and if not, make sure all handsets are disengaged.

No action required

Contact Central Telecoms Support on 1300 677 406.

Wait for the download to be completed, then check your service again.

To reset your NBN connection box:

  • Turn off the power point that your nbn power supply is plugged into 
  • Remove the power cable from your nbn Connection Box and wait 20 seconds
  • Reconnect the cable, and turn the power back on 
  • After 1-2 minutes, you should see these lights:
    • Power – Solid green
    • Optical – Solid or flashing green
    • Alarm – Solid green
    • Uni-D – Off, amber, or green

Have any questions?

Our support team would love to help you out. Click the contact button below and be redirected to our form, or simply call us at 1300 677 406.

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