You probably been looking all over the web to fix your ALFA AWUS036NHA. The chance is you tried many different methods and ways to solve the problem. Well some of the issues could be your getting:
Interface wlan0:
ioctl(SIOCGIFINDEX) failed: No such device
Failed initializing wireless card(s): wlan0
Without further due, open terminal and copy each command below:
apt-get update
apt-get upgrade
apt-get dist-upgrade
apt-get install firmware-atheros
Please note: Make sure you are running the commands as root if it didn\"t work by login in as root or su root#:`
Please watch the video below for further clarification. Enjoy!