Tried. It doesn't appear to do anything aside from changing the SSID to ConsoleNintendo3DS, and my 3DS can't even pass stage one of the connection test.
Tried maccheck.cmd just to be sure, and it worked fine.
As long as it comes up saying a Nintendo Zone is available your fine. Are you running BASE16 or BASE256?
BASE256 tends to not always work. I would recommend 16. Also try starting the Nintnedo Zone app as well.
UPDATE:
I've found on BASE16 that if you let it run the whole 30minutes it seems to Pass on the 28th Minute.
So weird..lol