WHAT IS? 

2.4Ghz & 5Ghz WiFi

What's the difference? Aren't they the same thing?

2.4Ghz & 5Ghz WiFi

Some things you see or hear about in the background, but until you NEED to know about them they mean very little.

Both 2.4Ghz and 5Ghz work the same, connect the same and 99% of the time you would never know which you were using.

FREQUENCY AND RANGE

2.4Ghz works at a lower Spectrum than 5Ghz. 

This has a major advantage when it comes to range. 

Higher frequencies are more easily blocked by solid objects, this is why your FM radio gets blocked when MW (Medium wave) and LW (Long wave) reach much further.

SPEED

The downside to lower frequencies is they can carry less information. 

This is why the 5Ghz band was created, to be able to carry larger amounts of Data over shorter distances.


SO WHY DOES IT  MATTER?

SMART HOME DEVICES

Due to fact that 5Ghz WiFi has a shorter range than 2.4Ghz, a lot of Smart Home manufacturers including Ener-j, Google (Chromecasts), Amazon (Echos) and a huge range of others limit their devices to using the 2.4Ghz band. 
This ensures that you get the maximum range and reliability in your home.

CAN THERE BE PROBLEMS?

Most people when they set up their routers select to have their 2.4Ghz and 5Ghz networks with the same SSID (Service Set Identifier) or network name.

By doing this your devices do not know which network is which, they just connect to what is available. 

With your phone, tablet or computer you generally wouldn't notice which band you were on, other than maybe finding your connection drop as you roam about your house, then when you reconnect it seems ok.
This is likely when you reach the limit of your 5Ghz, and when you reconnect you are on the 2.4Ghz instead.

With devices that require 2.4Ghz only, you need to ensure the network they attempt to connect to is not a 5Ghz network. 

Either the App for the device will warn you to use a 2.4Ghz network or will simply fail to connect.

Check out our Guide on how to separate your SSID's