Re: Just....
An analogy I use often when trying to explain to non-techy bosses why we can't just "buy stronger wifi":
You're in a crowded room at a party. You want to talk to the guy at the end of the room. You try yelling. But it's not enough. So you yell louder.
The people around you are all doing the same. And because you're yelling, they have to yell to be heard. Soon, everyone is yelling at the maximum volume possible (or allowed by law) and before you know it, EVERYONE's communications are hampered.
Whereas modern managed wifi does exactly the opposite. You want to talk to the guy at the other end of the room. You can't, because it's too noisy. So the wifi management system comes in and tells everyone "Shut up, Jeff needs to speak now, then it's your turn George" as well as "If we all take turns properly, there's no need to yell", as well as "If we only talk as loud as we need to, everything will be quieter and you'll still be heard".
Which is, pretty much, why managed wifi (rather than a bunch of unregulated consumer devices all screaming uncoordinated at max volume trying to get their customer to be heard over everyone else) works so much better and why it prefers a greenfield and everything to be the same manufacturer - so that the boxes HAVE TO LISTEN to the commands of the management system.
It's also why I tell people to throw their "wifi boosters" in the bin and just cable their house. They all start out okay... until your neighbour gets one too. Then you wonder why it's not working, so you try "shouting louder" by buying more and more boxes, and not realising that they are not only making the problem worse and worse, but that they are repeaters... they are listening for the people yelling and then yelling THE SAME THING AGAIN to try to relay the messages around.
And then they wonder why their wifi speeds drop across the board and it's really hard to communicate 30 feet across a house.
Tell everyone to shut up.
Only let a few people speak at a time.
Only let them use an appropriate volume.
Don't let them just repeat everything the other guy said.
Remove anyone who doesn't comply.
Same for managing wifi as managing a classroom.