Installing TP-Link TL-WDN4800 Adapter with Ath9k
Solution 1:
Since lspci sees your card the following should work.
1) Get the Atheros module
sudo apt-get install firmware-atheros
2) modprobe ath9k
sudo modprobe -r ath9k
sudo modprobe ath9k
Check your Network manager and it should be working.