8. Wi-Fi limitations

WiFi is very useful as a network technology. But there are some issues with it that means hard-wired networks will always be with us as well.

1. Security

You are broadcasting your network data over radio waves and these are easily picked up by other devices within range.

Early Wi-Fi networks were open to virtually anyone. Some people made a hobby of driving around looking for open networks. But now most private networks are password enabled so it is harder for someone to break into the network.

2. Limited connections

Just like a normal radio, WiFi uses a small number of radio channels to work.

This is no problem at home where only a few connections are needed. But in a busy office, this lack of channels may mean difficulty in making a connection.

3. Limited range

Wi-Fi is a radio technology and so it is affected by things such as walls getting in the way. For example, at home the router might be downstairs and so the signal upstairs may be very weak. This can be overcome by using a 'wi-fi extender' located somewhere in-between. It acts like a bridge, such as the extender shown in the picture which was plugged in a kitchen.