How to setup and secure your wireless network

You can use a wireless network to share Internet access, files, printers, and more.
Or you can use it to surf the Web while you're sitting on your couch or in your yard.
Plus, it's easier to install than you think. More...


 

First, you need to make sure you have the right equipment to set up your wireless network. The minimum you'll need to accomplish your networking project is a broadband Internet connection, a wireless router and a computer with built-in wireless support. If your computer doesn't have built-in wireless capability, you will need a wireless network adapter. Networking equipment supports three different wireless networking technologies: 802.11a, 802.11b, and 802.11g. We recommend 802.11g, because it offers excellent performance and is compatible with almost everything.

Wireless Router

A wireless router converts the signals coming across your Internet connection into a wireless broadcast.

Wireless Network Adapter

Network adapters wirelessly connect your computer to your wireless router. If you already have wireless capability built in to your computer, you won't need a network adapter. If you need to purchase an adapter for a desktop computer, buy a USB wireless network adapter. If you have a laptop, buy a PC card-based network adapter. Be sure that you have one adapter for every computer on your network.



First, locate your cable modem or DSL modem and unplug it to turn it off.

Next, connect your wireless router to your modem. Your modem should stay connected directly to the Internet. Later, after you've hooked everything up, your computer will wirelessly connect to your router, and the router will send communications through your modem to the Internet. Next, plug in and turn on your cable or DSL modem. Wait a few minutes to give it time to connect to the Internet, and then plug in and turn on your wireless router. After a minute, the Internet, WAN, or WLAN light on your wireless router should light up, indicating that it has successfully connected to your modem.




Using the network cable that came with your wireless router, you should temporarily connect your computer to one of the open network ports on your wireless router (any port that isn't labeled Internet, WAN, or WLAN). If you need to, turn your computer on. It should automatically connect to your router.

Next, open Internet Explorer and type in the address to configure your router.

You might be prompted for a password. The address and password you use will vary depending on what type of router you have, so refer to the instructions included with your router.

As a quick reference, this table shows the default addresses, usernames, and passwords for some common router manufacturers.

Router Address Username Password
3Com http://192.168.1.1 admin admin
D-Link http://192.168.0.1 admin  
Linksys http://192.168.1.1 admin admin
Microsoft Broadband http://192.168.2.1 admin admin
Netgear http://192.168.0.1 admin password


Internet Explorer will show your router's configuration page. Most of the default settings should be fine, but you should configure three things:

1. Your wireless network name, known as the SSID. This name identifies your network. You should choose something unique that none of your neighbors will be using.

2. Wireless encryption (WEP) or Wi-Fi Protected Access (WPA), which help protect your wireless network. For most routers, you will provide a passphrase that your router uses to generate several keys. Make sure your passphrase is unique and long (you don't need to memorize it).

3. Your administrative password, which controls your wireless network. Just like any other password, it should not be a word that you can find in the dictionary, and it should be a combination of letters, numbers, and symbols. Be sure you can remember this password, because you'll need it if you ever have to change your router's settings.

The exact steps you follow to configure these settings will vary depending on the type of router you have. After each configuration setting, be sure to click Save Settings, Apply, or OK to save your changes.

Now, you should disconnect the network cable from your computer.



If your computer does not have wireless network support built in, plug your network adapter into your USB port, and place the antenna on top of your computer (in the case of a desktop computer), or insert the network adapter into an empty PC card slot (in the case of a laptop). Windows XP will automatically detect the new adapter, and may prompt you to insert the CD that came with your adapter. The on-screen instructions will guide you through the configuration process.

Note: The steps below only apply if you're using Windows XP Service Pack 2.

Windows XP should show an icon with a notification that says it has found a wireless network.


Follow these steps to connect your computer to your wireless network:

1. Right-click the wireless network icon in the lower-right corner of your screen, and then click View Available Wireless Networks. If you run into any problems, consult the documentation that came with your network adapter. Don't be afraid to call their tech support.

2. The Wireless Network Connection window should appear and you should see your wireless network listed with the network name you chose. If you don't see your network, click Refresh network list in the upper-left corner. Click your network, and then click Connect in the lower-right corner.



3. Windows XP prompts you to enter a key. Type the encryption key that you wrote down earlier in both the Network key and Confirm network key boxes, and then click Connect.

4. Windows XP will show its progress as it connects to your network. After you're connected, you can now close the Wireless Network Connection window. You're done.

Note: If the Wireless Network Connection window continues to show Acquiring Network Address, you may have mistyped the encryption key.