Adelaide - NBN FTTN Cable Fault

What is 'Fibre To The Node' or FTTN?

FTTN or 'Fibre to the Node' is a 'last mile' VDSL technology NBN have implemented in many suburbs around Adelaide

NBN have run fibre optic cables into areas and installed 'nodes'node , essentially mini exchanges, at their end. From there they use the existing telephone copper cables to deliver the last section of your internet service. Nodes deliver services to homes and businesses to a maximum of 1.3km from their location (total copper line length, not 'as the crow flies')

How Do You Connect To FTTN?

FTTN requires an active telephone socket to work. You can shift your FTTN VDSL modem from one socket to another inside your premises as long as the socket is connected to the network and has no filtering installed

FTTN VDSL works best when only a single line is connected between the building entry point (where the NBN line meets your house) and your wall socket. If you have multiple sockets connected, known as 'bridge taps', or 'bridged taps', your connection speeds can be severely affected, sometimes losing as much as half the available sync speed.

Common problems we find are;
  • ADSL Central Splittersnode were installed to filter out the ADSL signal to all but one socket, the socket which was used for the modem. Although some of the latest splitters were VDSL2 compatible, the vast majority are not and can cause regular sync loss on NBN FTTN services. These should be removed.
  • Poor Terminations - behind sockets, or in the roof space, will cause poor sync speeds and regular dropouts.

  • Bridge Taps - Having more than one line/socket in the premises connected to the network (‘bridge taps', or 'bridged taps’) will lower your attainable sync speed by up to half. It’s always better to disconnect unused sockets. In many cases NBN will not attend a fault if multiple socket are connected, something they can see by sending out pulses from their DSLAM.
Optimising FTTN VDSL

To achieve the best possible connection speeds available to you it's always best to either disconnect all unused cabling, and central splitters, or have a new line run direct from the building entry point to your modem location.

If you have been told that the issue with your service is with your internal cabling, or you just want to achieve the best speeds available to you, eTechs technicians can attend and quickly establish what speeds are available, how many sockets are still connected, and what can be done to resolve the issue.
The resolution may be as simple as disconnecting all unused sockets at the main junction and removing a central splitter, or may require a new line be run from the NBN enclosure to the socket where you modem is connected.


eTechs carry the same test equipment as NBN fault technicians (Viavi ONX-580) so there is no guesswork. We will resolve your issue if the problem is actually inside. If for some reason we suspect the issue is external to your property, we can give you a report with metallic and spectrum test results to feed back to your provider for NBN to action.

With over two decades of experience in resolving internal customer cabling issues, cabling installations, and since its inception, ADSL installations and faults, eTechs will make sure you get the best connection available to you.

Our friendly and experienced technicians can attend and quickly rectify the issue for you.

Please call our office on 08 8463 1161 to arrange for a technician to attend, or alternatively, use our booking form.

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With over 25 years of Telecommunications and Telstra fault rectification experience around Adelaide, you can count on us to deliver quality work that meets all relevant Australian Standards. We pride ourselves on being very meticulous. In fact, we are so confident in our work that we offer a lifetime warranty on our workmanship.

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We present honest and fair pricing on every installation we complete.

  •   No over-blown pricing
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  •   No shortcuts

We use only the best quality materials (Krone, Clipsal, Panduit, etc). So you can rest assured you will have the best technicians using the best materials, guaranteed!


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Our fully licensed and insured installers have many years of experience.
Because we offer a lifetime warranty on our workmanship, our team consists only of people with the right skills and attitude we trust to deliver top quality installations.

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Your technicians will be well presented and courteous. We understand that we are sometimes working in a busy home or business environment.
We aim to cause as little disruption as possible during the fault finding and repair process.

FTTN Cabling