What model fangbook do you have? Your wifi card may be turned off. Or you're missing the drivers for it. If it's turned off, there is either a physical switch somewhere on the laptop that looks like this http://www.tecsupp.com/wp-content/uploads/2011/01/wifi-switch.jpg
If your wifi card is turned on and still not working, enter device manager and see that your network adapters lists a wireless driver. If not, you'll need to get the driver for it.
What model fangbook do you have? Your wifi card may be turned off. Or you're missing the drivers for it. If it's turned off, there is either a physical switch somewhere on the laptop that looks like this http://www.tecsupp.com/wp-content/uploads/2011/01/wifi-switch.jpg
If your wifi card is turned on and still not working, enter device manager and see that your network adapters lists a wireless driver. If not, you'll need to get the driver for it.