The reset works... Sort of...
I battled with this for an hour one day because my iPhone was having some issues. (Nothing mentioned anywhere, so I'm just gonna chalk it up to a glitch) Anyways, every time I tried to reset, it said it was unavailable or some such nonsense message. Wait a while and try again. I did. No luck.
After some irritation and web searches on Google, I came across an article that said the reset doesn't work from some IE, FF, and Chrome versions. The only guaranteed way to get the reset to work... Do it from Safari on a Mac. It seemed to indicate that it would work from Safari on Windows, but it didn't go so far as to specifically say it. I went to a Mac where I work, logged in, hit reset, and it worked first try. I went back to Windows, tried and failed again.
They really need a disclaimer on the reset button... 🙄