I've installed W8 some time ago on my laptop (Aspire 8951G), I can't seem to connect to WiFi.
It keeps saying "No networks found". I bought a brand new WiFi USB adapter this morning and does the same thing as my built-in adapter. So I think it doesn't have something to do with the adapter's drivers, but something wrong with W8.

They both show up fine in Network Connections, but as "Not connected"

Any advice?