Ubuntu – Intel Dual BandWireless-AC 3168 does not work on Ubuntu 16.04


I am unable to connect to wifi – the option of wireless connectivity is not shown; there is the only the option of ethernet.
I am using Ubuntu version 16.04.

$ lspci -knn | grep Net -A2
05:00.0 Network controller [0280]: Intel Corporation Device [8086:24fb] (rev 10)
    DeviceName: Intel Dual BandWireless-AC 3168 802.11 ac 1x1 WiFi + BT 4.0 Combo Adapter
    Subsystem: Intel Corporation Device [8086:2110] 

$ ifconfig wlan0
wlan0: error fetching interface information: Device not found
$ modprobe iwl3945
modprobe: ERROR: could not insert 'iwl3945': Operation not permitted
$ ifconfig wlan0 up
wlan0: ERROR while getting interface flags: No such device

the screen shot of the problem wifi option is not there top right corner

Best Answer

This adapter is supported since kernel 4.6.

The kernel version in Ubuntu 16.04 is 4.4.

You can install kernel 4.8 to Ubuntu 16.04 this way:

sudo add-apt-repository ppa:canonical-kernel-team/ppa 
sudo apt update
sudo apt install linux-generic-lts-yakkety
sudo add-apt-repository -r ppa:canonical-kernel-team/ppa

Reboot after you do it.

After the linux-generic-lts-yakkety package appears in main Ubuntu repositories (it should happen soon) it will start getting updates.

You also need to install firmware this can be done by

wget http://mirrors.kernel.org/ubuntu/pool/main/l/linux-firmware/linux-firmware_1.161_all.deb
sudo dpkg -i linux-firmware_1.161_all.deb
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