Access to the computer's parent Active Directory is required when attempting to authenticate with a CAC for a given computer, for the first time. Use of, for example a field replaced laptop computer that was not prepared with the user's CAC before shipment would be impossible to use without some form of direct access to Active Directory beforehand. Other remedies include establishing contact with the intranet by using public broadband Internet and then VPN to the intranet, or even satellite Internet access via a VSAT system when in locations where telecommunications is not available, such as in a natural disaster location.