can't login to setup utility, need username

I have a Vera2 that I bought some time ago but am just now getting around to setting up. When I reach the page at “MiOS” a Windows dialog box pops up asking for the username and password. I have tried “admin” and “root” for username and for password, the Wifi pw printed on the label on the Vera2 unit, but these are apparently not the right credentials because I am receiving the message “ERROR Cannot communicate with your unit.” I tried a factory reset by double-tapping the reset button (though I’m not sure the unit actually reset) and still no luck.
Is there a default username that I should be using?
It is certainly possible that I changed the username and password previously, I don’t remember. In this case I’m assuming a factory reset would allow me to start over again.