I get a lot of requests for help from people who have performance issues with WiFi networks at home and in public. It’s often difficult to help because most people know WiFi like they know electricity: as long as it does what they want it to do, they don’t think about it.
The MacObserver published a great article yesterday called 4 Wi-Fi Tips from Former Apple Wi-Fi Engineer. This is not a comprehensive how-to, but there is something in the article for many people who think fairly deeply about the WiFi systems they use.
Just to give one example: in the article, Alf Watt says, “Use {the} same SSID for all radios on the same network.” I never knew that this mattered. I have 2.4 and 5 GHz networks in my house that have different names. Watt is saying I should not be doing this. So I will have to change this and see how it affects performance.
If you care about your WiFi networks, you should go through this article and see if you can learn something as well.