Make sure your computer is running Windows Server 2008 R2, Windows 7 Enterprise, Windows 7 Ultimate or later. Your computer ...

Make sure your computer is running Windows Server 2008 R2, Windows 7 Enterprise, Windows 7 Ultimate or later. Your computer must be joined to a domain, and your network administrator must have configured DirectAccess for your organization.

If these requirements are met, use an Ethernet, wireless, or VPN connection to connect your computer to the domain.  This will update settings controlled by your network administrator.