This commonly occurs right after an upgrade/update to the operating system.
- First thing is first – your laptop will probably have a Wireless On & Off feature which is either on the side of the laptop chassis or front usually in the form of a button or switch. If it’s off, turn it on!
- If the wireless is turned on and you are still getting an issue open a Terminal and type:
sudo rfkill unblock wifi
- Press Enter
- You should now be able to access the wireless.
If neither of the above work – then the problem most likely is you’re wireless on & off switch and it might need to be rewired to be permanently on.