Microsoft KB Archive/172125

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How to Always Use the Log On Using Dial-Up Connection Option

Article ID: 172125

Article Last Modified on 2/23/2007


  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Professional Edition
  • Microsoft Windows 2000 Datacenter Server
  • Microsoft Windows NT Server 4.0 Standard Edition
  • Microsoft Windows NT Workstation 4.0 Developer Edition

This article was previously published under Q172125

IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry


This article explains how to configure a computer that runs Microsoft Windows NT 4.0 or Microsoft Windows 2000 to always use the Log on using dial-up connection option. This option enables you to dial into your logon server to authenticate your user account.


WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

To enable this option so that it is always checked, use the following steps to edit the registry:

  1. Start Registry Editor (Regedt32.exe).
  2. Locate and select the following registry subkey:


  3. From the Edit menu, click Add Value, and type the following information:

    Value Name: RasForce Data Type: REG_SZ Value: 1

NOTE: After you add this value, the Log on using dial-up connection option will be permanently selected. If the remote network is not available to authenticate your logon, then you will not be able to logon to the computer until one of the following conditions is met:

  • The remote network becomes available.
  • You use the Emergency Repair Disk (ERD).
  • You use another computer to edit the registry remotely and change the RasForce value from 1 to 0, which turns off the Log on using dial-up connection option.

NOTE: This will only be possible if the computer is also on a LAN. For additional information, click the article number below to view the article in the Microsoft Knowledge Base:

97597 How to Enable Automatic Logon in Windows NT

Additional query words: dun ras login log automatically

Keywords: kbhowto kbinfo kbnetwork KB172125