i have ubuntu 14.04 then upgrade to 15.04 afterthat my wireless NIC card is not detecting but in windows 10 its working fine... and ubuntu 15.04 unable to detect it to work. how to solve that problem ..please suggest.. when put command on Terminal i.e iwconfig or any thing else only eth0 and lo are there no wlan0 or wlan1 etc ...what to do ..so that my wifi works fine... Detail Description...after installing ubuntu 15.04 everything works fine except the wifi . Nither its detected nor its works to surf internet ..with LAN and Bluetooth its work fine only problem with wi-fi with Airplane mode on or off doesn't matter not working ..i have there are so many to complain about it also gave some suggesstion to the question but sorry to say its doesn't work... its my suggestion to the developer team to work for the WI-FI with advance driver to come
Your Atheros wireless device 168c:0042 is not yet supported in the Linux kernel. Please see: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1484159
From the last link:
Finally, until support comes along, I'd suggest an inexpensive USB wireless device. There are often threads here about working devices.