Why am i experiencing slow speeds on WiFi?

Wi-Fi interference is one of the most common problems when it comes to slow Wi-Fi speed and, or dropouts. This can happen when other devices in your household are operating on the same frequency that your Wi-Fi is using.

Wi-Fi Interference

To reduce the likelihood of running into Wi-Fi interference, you want to make sure your modem isn’t directly next to anything that could be causing interference. Some examples of household items that can cause interference when placed next to a modem include:

  • TVs
  • Microwave Ovens
  • Cordless Phones
  • Baby Monitors
  • Bluetooth Devices

Wi-Fi Positioning

Another cause of unreliable Wi-Fi can be the positioning of your modem, here are some tips we have found to better your Wi-Fi signal.

  • Make sure that your modem is in an open non-obstructed area (For example, not hidden away in cabinets, behind bookshelves or TV units)
  • Make sure that your modem is off of the floor, we generally recommend having your modem around 1 meter above the floor as this will better the signal around your home

Changing Your Wi-Fi Channel

If you are finding that your Wi-Fi is still slower than usual or dropping out frequently, you can change the Wi-Fi channel as it may be stuck on a frequency that is already being used by a surrounding neighbour or device in your home.

Here is a graph showing the separate channels. In the 2.4 GHz band, 1, 6, and 11 are the only non-overlapping channels. Selecting one or more of these channels is an important part of setting up your network correctly.)

WiFi chanels

Your Smart Modem supports different channels across both 2.4 and 5GHz, and will try choose the best channel for your Wi-Fi network by default. Your Smart Modem can also change its Wi-Fi channels automatically, if it detects interference or noise from a neighbouring Wi-Fi network. It isn't just your modem that does this though - your neighbour's modems could be doing the same thing. Sometimes a neighbouring Wi-Fi network can start interfering with your Wi-Fi, and changing the channel on your Wi-Fi can help improve performance.

You can change the Wi-Fi channel you want to use for 2.4 and 5GHz on your Smart Modem on the WLAN settings page 

Wi-Fi is convenient. But it can also be a pain because it’s vulnerable to interference from a lot of things, everything from other Wi-Fi users to your microwave.

Whenever you have a device that can accept a wired (Ethernet) connection from your Smart Modem – PCs, game consoles, Smart TVs, laptops – use it. It’s nearly always faster and more reliable than Wi-Fi.

Isolation test

Here are a few quick checks you'll need to carry out. These checks are really important to help us out and can often fix the problem, so let's get started:

  1. Disconnect (remove) all other devices from the phone jackpoints at your house. This includes phones, faxes, DSL filters, Sky decoders, monitored alarms, phone extension cables, etc. Can you connect to the Internet once all other devices are disconnected?
  2. Try connecting your modem at different jackpoints around the house, make sure to leave all other devices disconnected. Can you connect using a different jackpoint?
  3. Give us a call to let us know if the checks worked so that we can get to the bottom of the problem.

How do you know if the checks worked?

On our Nova modem there will be a light labelled "WAN" that will light up solid. When a connection has been established, the light labelled "Internet" will also begin flickering. If either of those happen, try to browse the internet again.

It's super important that you go through the above steps. If it all sounds too techy, we're more than happy to help - just call us on 0800 668 236 and one of our experts will guide you through the process.