wifi issues, constant Wifi issues, like 10-15 times a day

I noticed that apple has yet to fix the wifi issues with Mac OS. noticed this was an issue 2011, since then what is the solution to the problem where wifi is "connected" but requires you to delete the wifi, and reload it password and all, time and time again... is there a fix? cause its a big of enough issue to switch OS at this point.. Same goes for Airdrop, works 0% of the time without restarting all my devices.