Mac OS X Wireless Authentication
On the (upper) right-hand of your desktop Finder menu, click the the AirPort icon in the menu bar and select the "kcai" wireless network.
At the password prompt, enter your KCAI email user name and password.
At the certificate prompt, click Continue.
Click on the "Show Certificate" button and check the "Always trust..." box.
Click on the Continue button and enter your local administrator user name and password.
If you authenticate successfully, the color of the AirPort icon will change from grey to black.
* If you still have difficulty accessing your account, You may need to reset your password in the Apple Keychain Utility (continue on to the instructions below).