How do wireless routers work?

In this article we'll explain how wireless home routers allow users to set up a WiFi network.

What is a router?

Modem
To establish an internet connection, a computer needs a use a modem. Modems allow computers to interpret the signals that are sent through fibre optic cables or telephone lines. DSL cable modems are now the standard broadband connection in the UK. If you want to connect more than one computer to a network or internet connection then you need a device that allows computers to share the same modem connection. These devices are called routers. It is possible to buy wired routers but nowadays, wireless router are much more common. In order to set up a WiFi network, wireless adapters are needed for each computer on the network. Almost all modern computers have built in wireless network cards. The main purchase when setting up a wireless internet connection is the wireless router itself.

Setting up a wireless router

Connecting for the first time Most wireless routers that are supplied by your broadband are a combination cable modem and router. Most people do not have to have two separate boxes. A standard package will consist of the wireless router, AC adapter, DSL Filter and Cable and an Ethernet cable. Generally, the user will need to physically connect to the router the first time it is used with an Ethernet cable. The standard router home page for most devices can be found at 192.168.1.1.This can be accessed with a standard web browser. When you have connected to your wireless router, you can now set up the wireless security. Wireless security
When you have successfully configured your internet connection and entered your internet service provider's account details, you will need to configure your security settings. If possible you should try and use WPA rather than WEP protection. WPA uses more complex encryption and allows the use of an easy remember pass phrase rather than a 26 character hexadecimal code. Router Location
Routers use microwaves to transmit the data. These microwaves lose energy as they pass through solid obstacles such as furniture and walls. Try to locate your wireless DSL modem and router in a central location. If you only use you computer WiFi network in one room, then place the router in the same room. If you like to use portable devices all around your house, then mounting on a central staircase can be a good compromise. Troubleshooting
As routers use electromagnetic radiation to communicate, you need to be aware that some digital phones, baby monitors and some mobile phones can interfere with the signal.
New wireless routers are less prone to these problems, but may experience a slower connection.