Before you begin, please try to configure the WRT54G from a hardwired PC for simplicity. Whenever security is changed you’ll need to change the settings on all wireless units so it’s a good rule of thumb to do security changes from a hardwired PC if possible.
Accessing the Router
1. Go to your desktop and double click on Internet Explorer (Located on the Start Menu in Windows XP)
2. When "Internet Explorer" opens type the routers IP address into the "Address" bar and hit the [Enter] key (The Wireless routers default IP address is http://192.168.1.1
3. The "Enter Network Password" window will appear.
4. Skip user name and type in your password (admin is the default password), and click OK
Setup Page Security Options
When you arrive at the Setup page, you'll see the bulk of your wireless security features. There are three things you're going to want to set on this page:
a) Delete linksys from the "SSID" field
b) Input your own unique SSID. We general recommend something easy to remember, but secure enough to where people would not be able to guess it easily. Sometimes your best bet is to use your last name and add some numbers, in this example we’re using linksys12345678910.
c) Click Apply then Continue
2. SSID Broadcast
SSID broadcasts allows other 802.11b and 802.11g users to see your Access Points SSID, by disabling this option is similar to closing your binds and not letting people see through. If you have Windows XP computer(s), do this step last.
a) Select Disable on the “SSID Broadcast”.
b) Click Apply then Continue
a) Set “Wireless Security” to Enable.
b) Click the Edit Security Settings button.
c) A window will appear prompting you “Do you want to enable the Security Encryption?” click OK.
d) When the "Security Settings" Window appears, set the “Security Mode” to WEP*. Then set the “WEP Encryption” to the 128 bits 26 hex digits option.
NOTE: 128 bit WEP may not work on non-Linksys products due to its lack of an IEEE standard
e) Enter a passphrase** that is different from the SSID. Try to make it alphanumeric; instead of just security, use security12345, then click the Generate button.
f) After the key has been generated copy the key into a notepad document and copy that file onto a floppy.
*NOTE: There are other security options, which the WRT54G uses, however, not all wireless adapter currently support security implementations such WPA and 802.1x. Most wireless adapters support either 64-bit WEP or 128-bit WEP, so Linksys recommends using WEP unless you know that all of your wireless adapters support WPA.
**NOTE: The passphrase will not work with non-Linksys products, so you will need to use the 1st key that you copied onto floppy. You will also need the key, not the passphrase for using Linksys products under Windows XP
g) Click Apply then Continue
h) Close the window