So I've been having multiple issues installing both 12.04 and natty narwhal 11.04.
I installed from a usb drive both times exactly as ubuntu.com said to onto a custom build desktop with a Atheros ar2143 pci wireless card. However, whenever i install or run from the usb there is no wifi connection and i can only connect through wired ethernet.
I had wireless for a very brief period of time while i finished installing 12.04 for the first time while i was right next to my router, but then it stopped working entirely. I moved the comp to my room and then no wireless connections showed up at all after that. Since then both 12.04 and 11.04 have only had an internet connection through a wire.
Also, more often than not, if i boot from my hdd and dont have the ethernet cable in the load up screen will freeze and begin flashing.
Ive made sure the card is properly seated, the led turns on indicating it has power. Also ifconfig shows that the card is being identified and rfkill list shows that nothing is being hard or soft blocked. Ive tried