I dual-boot kali linux with windows 10. After installation wifi is not working. I can run internet by using USB modem. It's surprising because during its installation i provided all the required firmwares for wifi and ethernet which installer was asking. The rest of the firmwares which were still missing, i copied them to /lib/firmware after installation. I've Intel Dual-Band Wireless AC-3165 wifi adapter.

0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
2: acer-wireless: Wireless LAN
Soft blocked: yes
Hard blocked: no
  • please add the output of uname -a – GAD3R Nov 6 '16 at 17:19
  • Can you add the output of cat /etc/apt/sources.list? – GAD3R Nov 7 '16 at 16:29
  • can you add output of rfkill list? – defalt Dec 2 '16 at 10:43

Download the firmware from here or from here

wget https://wireless.wiki.kernel.org/_media/en/users/drivers/iwlwifi-7265-ucode-16.242414.0.tgz
tar xvf iwlwifi-7265-ucode-16.242414.0.tgz

copy it to your /lib/firmware

cp iwlwifi* /lib/firmware

install the required package build-essential and linux-headers :

sudo apt-get install build-essential

Run apt-cache search linux-headers then install it

Download and compile backports:

wget https://www.kernel.org/pub/linux/kernel/projects/backports/2016/03/24/backports-20160324.tar.gz
tar xvf backports-20160324
cd backports-20160324
make defconfig-iwlwifi
make install



Open the sources.list file:

apt edit-sources

Choose the text editor e,g : 1 (nano) add the following line ( verify it):

deb http://http.kali.org/kali kali-rolling main contrib non-free

Save it then run the following commands :

apt-get update
apt-get upgrade
apt-cache search linux-headers

Then install the appropriate linux-headers e,g:

apt-get install linux-headers-4.8.0-kali1-amd64
apt-get install linux-image-4.8.0-kali1-amd64

Reboot your system , from the advanced option Boot Kali-linux with the 4.8.0 kernel version then compile backports .


Blacklist acer_wmi solve the problem

  • It worked. It is downloading new upgrade packages. I'm sure rest of the command-lines will work after upgrade is done. – defalt Nov 9 '16 at 2:29
  • @user334283 after editing the sources.list are you able to found/ install the linux-headers ? – GAD3R Nov 18 '16 at 19:18
  • I'm able to install linux-headers with a little search on internet. Now I'm supposed to download and compile backports but each time I enter the command-line make after extracting, it displays errors as shown in the screenshot. See above. I think I'm on the last step of your answer. – defalt Nov 18 '16 at 20:08
  • 1
    This is the error i was talking about. pastebin.com/jsnKt816 . I maybe new to shell commands but that's not tough to guess that these are compile-time errors. Codes of backports have errors. – defalt Nov 26 '16 at 14:17
  • 1
    I fixed it. See my answer. Backports were never really a problem. Backports are not even required for the latest kernel module. – defalt Dec 2 '16 at 10:55

Your Terminal output rfkill list shows the following issue:

The GNU/Linux kernel is loading the acer_wmi kernel module, even though you are NOT using Acer hardware.

Both the acer_wmi and intel_wmi kernel modules are running at the same time, causing a conflict and causing the wireless adapter to get deactivated by the acer_wmi kernel module.

However, you are using an intel adapter, not an NIC by Acer.

So the acer_wmi module needs to be blacklisted (= prevent it from starting during boot).

Please copy-paste the following command into the Terminal and then press ENTER:

gksudo gedit /etc/modprobe.d/blacklist.conf

Using the gedit editor, please scroll down and ADD the following configuration line into the file /etc/modprobe.d/blacklist.conf:

blacklist acer_wmi

Using the gedit editor, SAVE the change to the /etc/modprobe.d/blacklist.conf file.

Then REBOOT and retest wireless. This blacklist operation should make the change permanent, even after rebooting.

This should force the Linux kernel to stop loading the acer_wmi module, which is probably causing the kernel to soft block your wireless adapter.

The acer-wireless interface is an invalid wireless interface on your computer, because you are not using ACER hardware.


No need for anything complex, you can install the firmware package directly with apt.

The commands to install the firmware are:

sudo apt-get update
sudo apt-get install firmware-iwlwifi

The commands to reload the driver are:

sudo modprobe -r iwlwifi
sudo modprobe iwlwifi
  • output of your commandlines: root@defalt:~# sudo apt-get update Reading package lists... Done root@defalt:~# sudo apt-get install firmware-iwlwifi Reading package lists... Done Building dependency tree Reading state information... Done firmware-iwlwifi is already the newest version (20160712-0kali1). 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. root@defalt:~# sudo modprobe -r iwlwifi modprobe: FATAL: Module iwlwifi is in use. root@defalt:~# sudo modprobe iwlwifi – defalt Nov 7 '16 at 16:28
  • By the sounds of the errors the wifi interface is up already, try a reboot or ifdown wlan0 before unloading the module – Tim Fletcher Nov 7 '16 at 18:17

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