Summary:
This article describes how to setup encryption on the Linksys Wireless G WRT54G router. Other Linksys routers may have the same screens. Note that as soon as you change the encryption settings on the router, all wireless PCs will no longer be able to connect to the router until their encryption settings match. Wired PCs will be unaffected. Further note that prior to configuring encryption you need to decide the kind of encryption to use. If you choose WPA-PSK then all NICS need to support this and all machines should be running XP service pack 2. Otherwise it would be a good idea to choose WEP.
Resolution:
To login to the router, in Internet explorer, go to http://192.168.1.1. If that does not work then try plugging the PC into the router using a wired connection. Finally, try resetting the router using the reset switch on the back or bottom of the router. Note, this will clear all router settings.
If the login works this screen will appear:\
The User Name field should be left blank and the password is admin.
This results in the screen:
Click on the Wireless tab option at the top and then click on Wireless Security tab below that. This displays a screen similar to this depending upon the type of encryption already configured.
To configure encryption, choose either WPA Personal or WEP in the Security Mode field. Ignore the other available options.
For WAP
Select TKIP as the WPA Algorithm and enter a WPA Shared Key between 8 and 63 characters. Click Save Settings.
For WEP
The screen will look like this:
The Default Transmit key should be 1. Choose either 64-bits 10 Hex digits or 128-bits 26 Hex digits for the WEP Encryption. This has to match on all PCs on the network. Enter a passphrase and then choose Generate. If 64 bit encryption is selected the passphrase should be 5 characters long. If 128-bit encryption is selected the passphrase should be 13 characters long. Note down the value of key 1. This will beentered on all wireless machines on the network. Click Save Settings.
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