You can hibernate or shutdown the laptop, remove the access panel in the bottom and make sure the two antenna leads are connected well (be gentle as the connections are not difficult to break). Otherwise i would look at replacing the entire wireless card. What latop do you have?
As soon as I got home from work, I opened up the back of the computer where the wireless card was, and sure enough, one of the antenna leads were disconnected! Something so simple and now it works perfectly fine! Thank you very much!
Your wireless card is a half height modern card.
If replacing the driver does not work, and the antenna leads are firmly in place then you will need to replace the card.