Trying to use "iw" to configure the wifi card, it failed to do scan command and said that "operation not permitted".
Then changed to root as somebody suggested, got worse:
spirent@coast198:~$ iw dev wlan0 scan
command failed: Operation not permitted (-1)
root@coast198:/home/spirent# iw dev wlan0 scan
command failed: Network is down (-100)
Do I miss something here that needs to be installed?
I'm running Ubuntu 13.10 server version installed on my test server, using a new WiFiAC card (ath10k driver).