Hello Lisa
(01) Is the switch for your WiFi radio in the ON position?
(02) If it is, then it's possible your WiFi connection is (in your operating system) disabled or missing.
(03) If your operating system is Windows Vista, please, go
HERE to learn how to access your network connections.
(04) If your operating system is Windows XP
(a) Click on START
(b) Click on NETWORK CONNECTIONS
(05) In either case, make sure your wireless connection is showing there.
(06) If your wireless connection is showing in your network connections, it is likely disabled. In that case, right click on it and choose ENABLE.
(07) Now, let's see if your WiFi LED lights back up for you.
(08) If it doesn't or if there was not a wireless connection in your network connections, please, post back here and let us know. We'll work w/ you to determine why it's missing.
Thank you,
BJ @:)