For most of us, Wi-Fi has become our preferred way to connect our Macs to other networked devices and the Internet. However, most of us also have times when those connections slow down or fail altogether. When that happens, however, there are several things you can do to diagnose and (ideally) fix the problem.
Chances are very good that, by the time you get to the end of that list, you’ll have fixed whatever problems you might have had. But chances are also very good that, as time goes by and your hardware and software change, as you use your Mac in new places, Wi-Fi problems will crop up again. But at least you now have a game plan for fixing them when they do