Broadband performance

Broadband performance is impacted by nine key factors, either by themselves or in a combination. We all desire the fastest, most consistent speeds possible, so ensure you address each of these if your broadband performance is compromised.


If you’re on the copper network, the further away you are from the cabinet or exchange, the slower your broadband speed. We can deliver VDSL services over the copper network within approximately 800m of the cabinet; ADSL 2+ within two kilometres of the cabinet and ADSL within six kilometres of the cabinet;

Fibre broadband is not affected by distance.


Also known as congestion, broadband capacity is affected by the number of people online. The time of day you use the Internet can affect your broadband speed – we see the traffic on our network peak in the afternoon when school finishes and at the end of the work day.

Backhaul, or how your property is connected to our core network, is another factor that can impact capacity. Your broadband provider will be able to investigate this.

Broadband plan 

If your speed drops suddenly and you’ve been downloading lots of content, you may have exceeded the data limit attached to your plan. Increasing your data allocation or switching to an uncapped plan will fix this. 


If your modem is five years or older this could be affecting your broadband performance. Like all technology, age is a factor, so it is best to upgrade modems every few years. 


Poor or aged wiring is one of the leading causes of broadband speed issues. If your wiring has not been looked at for a number of years, it’s likely that the wiring and jack points in your property were installed to deliver a good phone service rather than high speed broadband. Filters can be added to your jack points to improve broadband speed.

Hardware and software 

Old computers and software can affect your broadband performance and slow things down. Ensure you regularly;

  • Update the internet browser
  • Clean out old software you no longer use
  • Use less memory-heavy software while browsing
  • Delete cookies and browser history
  • Update your security software

Copper quality 

The quality of the copper line delivering your broadband can affect speed. Your broadband provider will be able to investigate and confirm the quality of your line using diagnostic tools.


Connecting a number of devices to your WiFi simultaneously can slow your broadband speed if you have limited capacity. Your proximity to the WiFi device can also have an impact. 

The other end of the line 

One factor out of your control is who you are connecting to and how they are connected. International connections, the capacity of their line and the content you are accessing, can all affect the quality of your broadband experience.


GPON technology uses a light signal to transmit data over a fibre optic cable to and from your house. It provides ultra-fast and ultra-consistent speeds because light signals are not impacted by distance or interference.

ADSL and VDSL technology use an electrical signal to transmit data over a copper cable to and from your home.  The speed is impacted by both distance and interference. VDSL is a newer technology and provides much faster speeds than ADSL.