Did you try Bluetooth in Ubuntu? Wi-Fi and Bluetooth are usually on the same adapter, if one doesn't work the other may not be working. Or in other words, turn one off and the other is off.

That's an excellent diagnostic procedure, use it often when working on others' computers. I prefer Linux Mint, now at 17.2, but there's probably 250 or more flavors to choose from. Most time I work...

After doing #1 I sincerely hope you shut the computer and unplugged the power cord and the battery before replacing the card. Not doing so can damage the card and/or the motherboard.

I had a...