Ben Miller of Sniff WiFi comments:
If there’s one thing we’ve learned about WiFi over the years, it’s that problems get fixed. Site surveys used to be sooo annoying. So we got controllers with auto-RF. Guests used to complain and complain that we didn’t have WiFi for them. So we got captive portals. And so the worl–
Wait a minute. Auto-RF really doesn’t work and we still need site surveys. And captive portals annoy our friends in desktop support as much as they annoy our guests, plus they drag down overall WiFi performance. Hmmm… Let’s start over:
A very interesting look at what happens when an AP is running two radios in the 5 GHz range.