Electrical interference from sources such as electric motors and electric fences.The number of other ADSL services delivered over the same copper wire in your area.
There are other external factors which can impact performance. You might not like this, but it's better for a provider to say no than to sell you a service they know will be sub-standard or perhaps not even work at all. If this is the case, an provider might refuse to even sell you a connection. Even if you are connected to an exchange, living too far away from it and the condition of the copper wiring can cause Excessive Transmission Loss. Old copper wires are the nemesis of fast internet access, but unfortunately there are plenty of busted wires running through our communities.Ī combination of these factors can lead to a household not being able to get ADSL at all. What you see in the graph above is the best case scenario, and as you can probably guess, this is far from the average user experience.įor your speed to be the same as you see above, the copper cabling to your house would have to be in tip-top shape and preferably running in a straight line from the exchange to your house. If you want to see how far your house is from your local telephone exchange, take a look at this DSLAM Coverage Map hosted by TPG. But if you're between 2km and 3km from the exchange, you'll really start to notice a difference.ĪDSL speed vs. With ADSL2+, you can be up to about 1km from the exchange before you may notice speed starting to dip. This degradation doesn’t occur on a straight line. Copper is a great material for this because it has low resistance, but this resistance increases the longer a signal has to travel, and so your connection speed degrades as the length of copper increases. The biggest factor that affects ADSL speed is your distance from your local telephone exchange.ĪDSL and ADSL2+ are delivered to your home over copper wires, and because of this, the speed of your connection to the network is impacted by the distance the information needs to travel between the exchange and your home. We’ll try and make this guide as user friendly as possible, but ADSL slowdown is a complex topic and what we suggest may not work for every single circumstance. But you do have options. If you’re suffering from slow ADSL speeds, or looking to avoid them after moving house, there are a number of factors to keep in mind.
We expect to see our search results in seconds, we hate buffering, and don't even want to hear about dropouts.