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This question is an exact duplicate of:

I'm new to Linux operating system and I have Kali Linux installed along Windows on my Laptop. I don't know how to connect to WiFi in Kali Linux. When I press the network settings I get Wired Connection, Proxy settings and all but no WiFi. What should I do? I read some answers here and over Google but I can't understand a bit. So please can anyone help step by step?

marked as duplicate by Stephen Rauch, G-Man, Satō Katsura, GAD3R, Raphael Ahrens Oct 30 '17 at 9:30

This question was marked as an exact duplicate of an existing question.

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Most likely your wireless adapter requires firmware. Firmware is not always free software, and if it is not then it cannot be distributed together with main software.

Since Kali is a Debian-derived system, inspect your /etc/apt/sources.list. As an example, you may see a line (the path may differ in your case):

deb http://pubmirrors.dal.corespace.com/debian/ testing main

Edit the line to read:

deb http://pubmirrors.dal.corespace.com/debian/ testing main contrib non-free

(i.e. add contrib non-free).

Save, run your package manager (does Kali have synaptic?) and tell it to reload the repositories. Then within the package manager search for the model of your wireless adapter. Chances are a package from the non-free group will contain the firmware you need, so install it and reboot.

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