Use your Google/AD credentials to log in.
Your username is the same as the one that you use for Google. *note: do NOT include the "@nv.ccsd.net" part of your email address (ex: andy.123456)
Your password is also the same as your Google password.
If you need to reset your password, go to https://myaccount.ccsd.net/. Remember, when you re-set your AD password, it also re-sets your Google password too!