+ Use the following commands to search and determine the wirless chipset for which drivers need to be installed
lspci
lsusb
lsmod
lshw
modprobe
Go to the below links to find the relevant drives available for the chipset model
http://linuxwireless.org/en/users/Drivers/
https://kernel.googlesource.com/pub/scm/linux/kernel/git/firmware/linux-firmware.git
cd Downloads
sudo apt-get install git
git clone https://kernel.googlesource.com/pub/scm/linux/kernel/git/firmware/linux-firmware
cd linux-firmware
sudo make
sudo make install
(reboot and the wirless chipset must be detected)