Wireless Network Unavailable

[Vaughands]

My sister recently used her laptop, and the next day turned it on/ She said it keeps saying "Wireless Network Unavailable"; there could be many issues I'm sure but can anyone help me pinpoint it?

EDIT: *slaps own head* Forgot to tell her to turn the wireless Card on ><!

 

[tipstir]

Disable the power saving feature on the wireless on laptops..