Step 1 Log into the web-based configuration by opening up a web browser and typing in the IP address of the access point (192.168.0.50).
Step 2 The default username is admin (all lower case) and the password is blank (nothing). Click OK.
Step 3 Click on the Advanced tab and then click Encryption on the left hand side.
Step 4 Click on the WPA radio button and then click Apply.
Step 5 Select PSK and then enter a key (passphrase). The key is an alpha-numeric password between 8 and 63 characters long. The password can include symbols (!?*&_) and spaces. Make sure you enter this key exactly the same on all other wireless clients. Keep the Group Key Update Interval set to 1800.
Step 6 Click on the Apply button to save your settings.
Note: If you are configuring your access point from a wireless adapter, you will lose connectivity as soon as you click Apply. You must enable WPA-PSK on your adapter and enter the same exact key as you entered on your access point.