I just spent the last week diagnosing catastrophic Wi-Fi issues at a client location. 90% of macs wouldn’t connect to Wi-Fi, when they would association would take 45 seconds. Sometimes you couldn’t route or ping the gateway. When you could you’d get disassociated within a minute. Turning off the airdrop/anirplay interface fixes it instantly. sudo ifconfig awdl0 down

It took us 5 days to figure it out. We had no less than a dozen professionals on it. Each with at least a decade of experience. We combed the Wi-Fi and network config repeatedly to figure out what we did wrong. (It wasn’t till we had the hint that it was client side that we sniffed the nic to see the packet of death)

So I’m going to respectfully disagree. Articles like this are important. If I’d seen this last Monday it’d have saved me a week of hell and saved my client a week of vastly diminished productivity. Not to mention the tens of thousands of dollars spent diagnosing it and the millions of dollars of lost revenue from the deals they couldn’t close because calls kept dropping in the office (because enough people were on hotspots to saturate cell service in the area)