Around 2017 I spent three days on and off trying to diagnose why my laptop running elementary OS had no wifi support. I reinstalled the wifi drivers and everything countless times. It worked for many days initially then just didn't one day when I got on the laptop. Turns out I had accidentally flipped the wifi toggle switch while it was in my bag. I forgot the laptop had one. Womp womp.
I had a friend come over to my place to fix her laptops wifi. After about an hour searching for any setting in windows that i could have missed, i coincidentally found a forum where one pointed out this could be due to a hardware wifi switch...