Unless things have changed, on a Windows environment, your dns has to point to your domain controllers.  If they don't logins will take a minimum of 3 minutes.  This change occurred with Windows Server 2003.

On Wed, Aug 1, 2012 at 11:34 AM, Raymond Ballou <[log in to unmask]> wrote:
by using static DNS but dynamic IPs?



We still use it on student machines for their at home solution


Sylvia Gagne
Georgia Elementary & Middle School
4416 Ethan Allen Highway
St. Albans, VT 05478