Many people are facing this issue after installing ubuntu on their system.
So if you are also facing this problem than be happy because i found a solution for this problem.
There are many possible solution for it.
Check whether wifi is not hard or soft blocked
open a terminal (ctrl+alt+t) and run follwing command
if you get something like this
than your wifi is soft blocked, and you can unblock it by running
reboot and your wifi will work now.
In case your wifi is hard blocked, to check run
you will see something like this
if it is hard blocked than you have to unblock it by wifi switch, i.e, (Fn+f2) in this case
If the solution 1 did not work for you, dont’t worry run this command
reboot your system and the wifi should work now
If none of the solution worked for you than its probably driver issue, you have to install driver for wifi. don’t worry driver is available here. Download the wifi driver and extract it.
go to the driver directory and give it execution permission by running
Now to install it run
To test it without installing run
To uninstall it run
To install it with dkms run
Yaa’y that’s it wifi should work now.
Hope this helped you, don’t forget to comment and share. Also if you have any doubt/question than comment it down.