lspci -knn | grep Net -A2
02:00.0 Network controller [0280]: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter [168c:0036] (rev 01)
Subsystem: AzureWave Device [1a3b:2130]
Kernel driver in use: ath9k
root@ubunt:~# cat /etc/network/interfaces
auto lo
iface lo inet loopback
#auto vlan12
#iface vlan12 inet static
address 172.16.10.2
netmask 255.255.255.0
vlan-raw-device eth0
auto wlan0
iface wlan0 inet dhcp
wpa-ssid 3500
wpa-psk 12345678
root@ubunt:~# ifup wlan0
Internet Systems Consortium DHCP Client 4.2.4
Copyright 2004-2012 Internet Systems Consortium.
All rights reserved.
For info, please visit
https://www.isc.org/software/dhcp/Listening on LPF/wlan0/6c:71:d9:e0:55:9d
Sending on LPF/wlan0/6c:71:d9:e0:55:9d
Sending on Socket/fallback
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 3 (xid=0x7101266c)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 8 (xid=0x7101266c)
DHCPREQUEST of 192.168.0.107 on wlan0 to 255.255.255.255 port 67 (xid=0x7101266c)
DHCPOFFER of 192.168.0.107 from 192.168.0.1
DHCPACK of 192.168.0.107 from 192.168.0.1
avahi-daemon stop/waiting
bound to 192.168.0.107 -- renewal in 3166 seconds.
root@ubunt:~# ping 8.8.8.8
PING 8.8.8.8 (8.8.8.

56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=48 time=51.0 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=48 time=51.1 ms
64 bytes from 8.8.8.8: icmp_seq=3 ttl=48 time=51.4 ms
64 bytes from 8.8.8.8: icmp_seq=4 ttl=48 time=51.9 ms
^C
--- 8.8.8.8 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3002ms
rtt min/avg/max/mdev = 51.075/51.406/51.913/0.369 ms
root@ubunt:~# iwconfig
eth0 no wireless extensions.
lo no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"3500"
Mode:Managed Frequency:2.462 GHz Access Point: 64:66:B3:2B:16:BE
Bit Rate=72.2 Mb/s Tx-Power=16 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=69/70 Signal level=-41 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:11 Missed beacon:0