Ok so I setup the router to only transmit wireless N and to use WPA2 only. When I try to connect using the windows zero configuration utility it gets stuck validating identity. It says something about windows not finding a certificate.
The weird part is that I was using WPA TKIP with the passphrase and it was working fine. I moved the selection tab to WPA2 only and keep the rest the same and no luck.
Any idea in how to setup WPA2???
I think I fixed a similar problem. I kept getting an error message about 'not finding a certificate', and when I googled the exact error message I found that MicroSoft has an update for Win Zero Config.:
http://support.microsoft.com/?kbid=917021
Applied this update, and now I can see & use WPA2-PSK with no error messages.
CAUTION: Microsoft Product - research thoroughly and use at your own risk!

Jones