Fibre

ONT lights and their meanings

An Optical Network Termination (ONT), also known as Client Premises Equipment (CPE) is the Fibre connection box installed inside your house. The ONT device connects your fibre router to the fibre network. We will look at the different ONT devices that our Fibre Network Operators (FNOs) use, how they work and what the signal lights on each device means.

Here are a few ONT devices we will cover:

We have grouped the ONTs based on their brand names and the FNOs that use them. Multiple FNOs may use the same brand and model of ONT.

1. CALIX: Frogfoot, MetroFibre, Balwin, Vuma Villages

  • Power = Power status.
    • Green = ONT has power.
    • Off = ONT does not have power. Check that your ONT is plugged in and receiving power from the power supply.
  • Broadband = Connection to the upstream provider (Frogfoot/MetroFibre/Balwin/Vuma Villages).
    • Green = Connected.
    • Red or off = The fibre line is faulty. Please ensure the thin fibre cables are firmly connected to the ONT device. If the light changes to green, you will be able to connect. If the light remains red or off, please reboot the ONT and WiFi router. Check our Network status page for any known issues. If there are no known issues reported, please contact our Support team to assist you further.
  • Service = Connection to the Internet Service Provider.
    • Green = Connected.
    • Red or off = No connection. Restart the ONT and WiFi router. If the light changes to green, you will be able to browse the internet. If the light remains red, please check the Network status for any known issues. If there are no known issues reported. please get in touch with our Support team to you assist further.
  • Ethernet = Indicates if the LAN cable is properly plugged into your ONT.
    • Green = Connected.
    • Off = No data connection. Ensure that the network cable between ONT and the WiFi router is connected properly, and the WiFi router is powered on. Restart the ONT and WiFi router. If the light changes to green, you will be able to connect to the internet. If the light remains off, please check that there is no issue with the network cable and test with a different network cable. If the ethernet light still does not come on after testing with a different cable, it might be that the port is faulty, please get in contact with our support team for further assistance.
Are all the ONT lights on and stable? 

If all the lights on your ONT are on, stable, and there is no known outage, please disconnect the ONT and WiFi router from the power socket for about 5 –10 minutes and try again.

2. CTC & RAYCORE: Vuma Trench or Vuma Core.

Vuma Trench (also known as Vuma core) may install any of the following ONT devices:

2.1. CTC.

2.2. Raycore.

Please note! 

This section does not include to Vuma Aeriel and Vuma Reach. Please scroll down to section 5 for Vuma Aeriel and Vuma Reach.

2.1. CTC

  • Power icon = Power status.
    • Green = ONT has power.
    • Off = ONT does not have power. Check that the ONT is plugged in and receiving power from the power supply.
  • F = Connection to the upstream provider (Vuma).
    • Green = Connected.
    • Off = The fibre line is faulty. Restart the ONT and your WiFi router. If the light changes to green, you will be able to browse the internet. If the light remains off, please check our Network status page for any possible issues. If there are no known issues reported, please get in touch with our Support team to assist further.
  • 1 = Indicates if the LAN cable is correctly plugged into your ONT.
    • Green = Connected.
    • Off = No data connection. Ensure that the network cable between ONT and the WiFi router is connected correctly. If the light remains off, please check that there is no issue with the network cable and test with another cable.

2.2. RAYCORE

  • Power = Indicates power status. The power light must be stable. If the power light is flashing please contact our support team to log a fault.
    • Blue = ONT has power.
    • Off = ONT does not power. Check that the ONT is plugged in and receiving power from the power supply.
  • FX = Connection to the upstream provider (Vuma).
    • Orange = Connected.
    • Off or Red = There is a fault on the fibre line. Restart the ONT and WiFi router. If the light changes to orange, you will be able to browse the internet. If the light remains off, please check the Network status for known issues. If there are no known issues reported please get in touch with our Support team to assist further.
  • LAN1 = Indicates if the LAN cable is properly plugged into your ONT.
    • Orange = Connected.
    • Off = No data connection. Ensure that the network cable between ONT and the router is connected correctly, and the WiFi router is powered on. If the light changes to green, you will be able to browse the internet. If the light remains off, please check that there is no issue with the network cable and test with another one.
Which port should the LAN cable be connected to? 

Please ensure that the LAN cable is connected to LAN1 of the ONT device. If it shows a different number, it means the cable is connected to a different port.

3. CTS: TT Connect

  • Power = Indicates the power status.
    • Green = ONT has power.
    • Off = ONT does not have power. Please ensure that the device is connected to the power supply.
  • Status = Indicates the system status.
    • Green = Connected.
    • Off = System is down. Reboot the ONT device. If the light changes to green, you will be able to browse the internet. If the light remains off, please get in touch with our Support team for further assistance.

  • WAN = Indicates the WAN port status.
    • Orange = Connected.
    • Geen = WAN port is up but configurations are incorrect.
    • Off = Port link is down. Check the Network status page for any known issues. If there are no known issues reported, please get in touch with our Support team to assist you further.
  • LAN 5 = LAN Port status.
    • Orange = Connected.
    • Off = No data connection. Ensure that the network cable between ONT and the WiFi router is clicked in. If the light remains off, please check that there is no issue with the network cable and that it is connected to LAN port number 5.
Are all the ONT lights on? 

If the lights on your ONT are on and there is no known outage, please disconnect the ONT and WiFi router from the power socket for about 5 –10 minutes and test again.

4. DASAN: Octotel

  • PWR = Power status
    • Green = ONT has power.
    • Off = ONT does not have power. Check that the ONT is plugged in and receiving power from the power supply unit.
  • PON = Connected to the upstream network provider (Octotel).
    • Green = Connected.
    • Red = There is a fault on the fibre line. Restart the ONT and WiFi router. If the light changes to green, you will be able to browse the internet. If the light remains red, please check the Network status for known issues. If there are no known issues reported please get in touch with our Support team to assist further.
  • ALM = The ALM light indicates whether there is a problem with your fibre connection.
    • Off = Connected.
    • Red = There is a fault on the line. Restart the ONT and WiFi router. If the light changes to green you will be able to browse the internet. If the light remains red, please check the Network status page for any known issues. If no known issues are reported, please contact our Support team to assist further.
  • Internet = Indicates that there is internet traffic on your fibre line.
    • Green = Connected.
    • Red = Internet traffic is not reaching your home. Restart the ONT and WiFi router. If the light changes to green, you will be able to browse the internet. If the light remains red, please check the Network status page for any known issues. If no known issues are reported, please contact our Support team to assist further.
  • LAN = Indicates if the LAN cable is plugged correctly into your ONT.
    • Green = Connected.
    • Off = No data connection. Ensure that the network cable between ONT and the WiFi router is clicked in and the WiFi router is powered on. If the light changes to green you will be able to browse the internet. If the light remains off, please check that there is no issue with the network cable and get in touch with our Support team to assist further.

5. HUAWEI MODELS: Vuma Reach, Vuma Aerial, Mitsol, Evotel, Thinkspeed, Link Layer, OpenFibre & Openserve.

  • Power = Indicates power status.
    • Green = ONT has power.
    • Off = ONT does not power. Check that the ONT is plugged in and receiving power from the power supply.
  • PON = Connection to the upstream network provider (Vuma Reach/ Vuma Aerial/ Vuma Reach / Mitsol/ Evotel/ Openserve).
    • Green = Connected.
    • Red or off = There is a fault on the line. Restart the ONT and WiFi router. If the light changes to green you will be able to browse the internet. If the light remains red, please check the Network status for known issues. If no known issues are reported, please contact our Support team to assist further.
  • LOS = Short for loss of signal. Indicates that a signal or connection is dropped or terminated.
    • Off = Connected.
    • Red = The network has lost signal. Restart the ONT and WiFi router. If the light goes off, you will be able to browse the internet. If the light remains red, please check the Network status for known issues. If there are no known issues reported, please get in touch with our Support team to assist further.
  • LAN = Indicates that the LAN cable is correctly plugged into your ONT.
    • Green = Connected.
    • Off = No data connection. Ensure that the network cable between ONT and the WiFi router is plugged in correctly and the WiFi router is powered on. If the light changes to green you will be able to browse the internet. If the light remains off, please check that there is no issue with the network cable and test with another one.

6. Huawei: Mitsol, FibreSuburb, DNATEL and Link Africa

  • Power = Indicates power status.
    • Green = ONT has power.
    • Off = ONT does not power. Check that the ONT is plugged in and receiving power from the power supply.
  • PON = Connection to the upstream network provider (Mitsol, Fibresuburb, DNAtel or Link Africa)
    • Green = Connected.
    • Red or off = There is a fault on the line. Restart the ONT and WiFi router. If the light changes to green you will be able to browse the internet. If the light remains red, please check the Network status for known issues. If no known issues are reported, please contact our Support team to assist further.
  • LOS = Short for loss of signal. Indicates that a signal or connection is dropped or terminated.
    • Off = Connected.
    • Red = The network has lost signal. Restart the ONT and WiFi router. If the light goes off, you will be able to browse the internet. If the light remains red, please check the Network status for known issues. If there are no known issues reported, please get in touch with our Support team to assist further.
  • LAN = Indicates that the LAN cable is correctly plugged into your ONT.
    • Green = Connected.
    • Off = No data connection. Ensure that the network cable between ONT and the WiFi router is plugged in correctly and the WiFi router is powered on. If the light changes to green you will be able to browse the internet. If the light remains off, please check that there is no issue with the network cable and test with another one.

7. NOKIA: Vodacom, Metrofibre and Openserve

  • Power = Indicates the power status.
    • Green = ONT has power.
    • Off = ONT does not have power. Please ensure that the device is connected to the power supply.
  • Alarm = Indicates if there is a problem with your fibre connection.
    • Off = Connected.
    • Red = There is a fault on the line. Restart the ONT and WiFi router. If the light changes to green you will be able to browse the internet. If the light remains red, please check the Network status page for any known issues. If there are no known issues reported please get in touch with our Support team to assist further.
  • PON = Connection to the upstream network provider (Vodacom).
  • Green = Connected.
  • Red or off = There is a fault on the line. Restart the ONT and WiFi router. If the light changes to green you will be able to browse the internet. If the light remains red, please check the Network status for known issues. If no known issues are reported, please contact our Support team to assist further.
  • LAN = Indicates if the LAN cable is plugged correctly into your ONT LAN port.
    • Green and flashing = Connected.
    • Off = No data connection. Ensure that the network cable between ONT and the WiFi router is clicked in. If the light remains off, please check that there is no issue with the network cable. If the light changes to green, you will be able to browse the internet. If the light remains off, please check that there is no issue with the network cable and test with another one.
Are all the ONT lights on? 

If the lights on your ONT are on and there is no known outage, please disconnect the ONT and WiFi router from the power socket for about 5 –10 minutes and test again.

8. DATA: Netstream

  • PWR = Power status.
    • Green = ONT has power.
    • Off = ONT does not power. Check that the ONT is plugged in and receiving power from the power supply.
  • PON = Connection to the upstream network provider (Netstream)
    • Green = Connected.
    • Red or off = There is a fault on the line. Restart the ONT and WiFi router. If the light changes to green you will be able to browse the internet. If the light remains red, please check the Network status for known issues. If no known issues are reported, please contact our Support team to assist further.
  • LOS = Short for loss of signal. Indicates that a signal or connection is dropped or terminated.
    • Off = Connected.
    • Red = The network has lost signal. Restart the ONT and WiFi router. If the light goes off, you will be able to browse the internet. If the light remains red, please check the Network status for known issues. If there are no known issues reported, please get in touch with our Support team to assist further.
  • LAN = Indicates that the LAN cable is correctly plugged into your ONT.
    • Green and flashing = Connected.
    • Off = No data connection. Ensure that the network cable between ONT and the WiFi router is plugged in correctly and the WiFi router is powered on. If the light changes to green you will be able to browse the internet. If the light remains off, please check that there is no issue with the network cable and test with another one.

9. UFIBRE/UBIQUITI: Frogfoot

  • Power light = Power status.
    • White = ONT has power.
    • Off = Bootup ONT does not have power. Check that the ONT is plugged in and receiving power from the power supply unit.
  • Signal Indicator
    • One White Light = Signal strength: Low
    • Two White Lights = Signal strength: Good
    • Three White Lights = Signal strength: Strong
    • One Amber light = Signal strength: Too Low
    • One Amber light / Two white lights = Signal strength: Too Strong
    • Three Amber lights = No signal. Restart the ONT and WiFi router. If the light turns white, you will be able to browse the internet. If the light remains the same, please check the Network status for known issues. If there are no known issues reported, please get in touch with our Support team to assist further.
  • Arrows = Ethernet LED
    • White Light = Ethernet connection up.
    • Off = Ethernet connection down.

10. DZS: Purple Forest and Vuma Aerial

  • Power = Indicates that the ONT is powered on. This light should be solid green.
  • WAN = Solid green indicates a successful connection to the fiber network.
  • Off = ONT is not provisioned.
  • Alarm = Should be off. If lit or blinking, it indicates a fiber optic signal issue.
  • Status = Provisioning done on the ONT.
  • GE 1-4 = Solid or blinking green shows activity between the ONT and connected devices (e.g., router or computer).
  • Internet = Solid or blinking green indicates an active internet connection.

  • If any of these lights are off or flashing unexpectedly, it might indicate a connection issue, please check the ***Network status for known issues. If there are no known issues reported please get in touch with our ***Support team to assist further.

11. HALNY: Octotel

  • Power = Power status.
    • Green = ONT has power.
    • Off = ONT does not power. Check that the ONT is plugged in and receiving power from the power supply.
  • PON = Connection to the upstream network provider (Octotel).
    • Green = Connected.
    • Red or off = There is a fault on the line. Restart the ONT and WiFi router. If the light changes to green you will be able to browse the internet. If the light remains red, please check the Network status for known issues. If no known issues are reported, please contact our Support team to assist further.
  • LOS = Loss Of Signal. Indicates that a signal or connection has dropped or terminated.
    • Off = Connected.
    • Red = The network has lost signal. Restart the ONT and WiFi router. If the light goes off, you will be able to browse the internet. If the light remains red, please check the Network status for known issues. If there are no known issues reported, please get in touch with our Support team to assist further.
  • LAN = Indicates that the LAN cable is correctly plugged into your ONT.
    • Green and flashing = Connected.
    • Off = No data connection. Ensure that the network cable between ONT and the WiFi router is plugged in correctly and the WiFi router is powered on. If the light changes to green you will be able to browse the internet. If the light remains off, please check that there is no issue with the network cable and test with another one.

12. CYBERSMART - Cybersmart

  • Power = Power status.
    • Green = ONT has power.
    • Off = ONT does not power. Check that the ONT is plugged in and receiving power from the power supply.
  • Fibre = A successful connection to the fiber network.
    • Green = Connected.
    • Red or off = There is a fault on the line. Restart the ONT and WiFi router. If the light changes to green you will be able to browse the internet. If the light remains red, please check the Network status for known issues. If no known issues are reported, please contact our Support team to assist further.
  • Ethernet = Indicates if the LAN cable is plugged correctly into your ONT LAN port.
    • Green = Connected.
    • OFF = No data connection. Ensure that the network cable between ONT and the WiFi router is plugged in correctly. If the light remains off, please check that there is no issue with the network cable. If the light changes to green, you will be able to browse the internet. If the light remains off, please check that there is no issue with the network cable and test with another one.
  • Duplex = Data transmission between devices sending and receiving simultaneously, which improves speed and efficiency.

13. BDCOM: Comtel

  • Power = Power status.
    • Blue = ONT has power.
    • Off = ONT does not power. Check that the ONT is plugged in and receiving power from the power supply.
  • PON = Connection to the upstream network provider (Comtel).
    • Blue = Connected.
    • Red or off  = There is a fault on the line. Restart the ONT and WiFi router. If the light changes to green you will be able to browse the internet. If the light remains red, please check the Network status for known issues. If no known issues are reported, please contact our Support team to assist further.
  • LOS = Loss Of Signal. Indicates that a signal or connection has dropped or terminated.
    • Off = Connected.
    • Red = The network has lost signal. Restart the ONT and WiFi router. If the light goes off, you will be able to browse the internet. If the light remains red, please check the Network status for known issues. If there are no known issues reported, please get in touch with our Support team to assist further.
  • LAN = Indicates that the LAN cable is correctly plugged into your ONT.
    • Blue and flashing = Connected.
    • Off = No data connection. Ensure that the network cable between ONT and the WiFi router is plugged in correctly and the WiFi router is powered on. If the light changes to green you will be able to browse the internet. If the light remains off, please check that there is no issue with the network cable and test with another one.

14. BDCOM: Clear Access

  • PWR = Power status.
    • Blue = ONT has power.
    • Off = ONT does not power. Check that the ONT is plugged in and receiving power from the power supply.
  • PON LINK = Connected to the upstream network provider. (Clear Access)
    • Green = Connected. Confirms live service.
  • PON LOSS = Indicates that a signal or connection is dropped or terminated.
    • Red = The network has lost signal. Restart the ONT and WiFi router. If the light goes off, you will be able to browse the internet. If the light remains red, please check the Network status for known issues. If there are no known issues reported, please get in touch with our Support team to assist further.
  • LAN = Indicates that the LAN cable is correctly plugged into your ONT.
    • Green and flashing = Connected.
    • Off = No data connection. Ensure that the network cable between ONT and the WiFi router is plugged in correctly and the WiFi router is powered on. If the light changes to green you will be able to browse the internet. If the light remains off, please check that there is no issue with the network cable and test with another one.

15. ZTE: Zoom Fibre

  • Power = Power status.
    • Green = ONT has power.
    • Off = ONT does not power. Check that the ONT is plugged in and receiving power from the power supply.
  • PON = Connection to the upstream network provider (Zoom Fibre).
    • Green = Connected.
    • Red or off = There is a fault on the line. Restart the ONT and WiFi router. If the light changes to green you will be able to browse the internet. If the light remains red, please check the Network status for known issues. If no known issues are reported, please contact our Support team to assist further.
  • LOS = Loss Of Signal. Indicates that a signal or connection has dropped or terminated.
    • Off = Connected.
    • Red = The network has lost signal. Restart the ONT and WiFi router. If the light goes off, you will be able to browse the internet. If the light remains red, please check the Network status for known issues. If there are no known issues reported, please get in touch with our Support team to assist further.
  • LAN = Indicates that the LAN cable is correctly plugged into your ONT.
    • Green and flashing = Connected.
    • Off = No data connection. Ensure that the network cable between ONT and the WiFi router is plugged in correctly and the WiFi router is powered on. If the light changes to green you will be able to browse the internet. If the light remains off, please check that there is no issue with the network cable and test with another one.

16. Calix: Frogfoot, MetroFibre, Balwin, Vuma Villages.

  • Power = Power status.
    • Green = ONT has power.
    • Off = ONT does not have power. Check that your ONT is plugged in and receiving power from the power supply.
  • Broadband = Connection to the upstream provider (Frogfoot/MetroFibre/Balwin/Vuma Villages).
    • Green = Connected.
    • Red or off = The fibre line is faulty. Please ensure the thin fibre cables are firmly connected to the ONT device. If the light changes to green, you will be able to connect. If the light remains red or off, please reboot the ONT and WiFi router. Check our Network status page for any known issues. If there are no known issues reported, please contact our Support team to assist you further.
  • Service = Connection to the Internet Service Provider.
    • Green = Connected.
    • Red or off = No connection. Restart the ONT and WiFi router. If the light changes to green, you will be able to browse the internet. If the light remains red, please check the Network status for any known issues. If there are no known issues reported. please get in touch with our Support team to you assist further.
  • Ethernet = Indicates if the LAN cable is properly plugged into your ONT.
    • Green = Connected.
    • Off = No data connection. Ensure that the network cable between ONT and the WiFi router is connected properly, and the WiFi router is powered on. Restart the ONT and WiFi router. If the light changes to green, you will be able to connect to the internet. If the light remains off, please check that there is no issue with the network cable and test with a different network cable. If the ethernet light still does not come on after testing with a different cable, it might be that the port is faulty, please get in contact with our support team for further assistance.
Are all the ONT lights on? 

If the lights on your ONT are on and there is no known outage, please disconnect the ONT and WiFi router from the power socket for about 5 –10 minutes and test again.

Still need assistance? 

If you need further assistance, please contact our friendly support via Afrihost Help Support Channels.

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