Enabling Network Level Authentication on XP Machine for Terminal Access

When connecting to a Windows 2008 Server using remote desktop from a Windows XP client running service pack 2 or earlier, you get the following error message:

"The remote computer requires Network Level Authentication, which your computer does not support"

Configure Network Level Authentication

To enable NLA in XP machines; first install XP SP3, then edit the registry settings on the XP client machine to allow NLA

  1. Click Start, click Run, type regedit, and then press ENTER.
  2. In the navigation pane, locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa
  3. In the details pane, right-click Security Packages, and then click Modify.
  4. In the Value data box, type tspkg. Leave any data that is specific to other SSPs, and then click OK.
  5. In the navigation pane, locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders
  6. In the details pane, right-click SecurityProviders, and then click Modify.
  7. In the Value data box, type credssp.dll. Leave any data that is specific to other SSPs, and then click OK.
  8. Exit Registry Editor.
  9. Restart the computer.

 

Enabling Server to allow connections from XP machines

  1. Click start, right click My Computer and go to Properties
  2. Click Advanced System Settings
  3. Go to the Remote Tab and untick All connections only from computers running remote desktop with Network Level Authentication
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Comments

  • Avatar
    Karthik Sujan

    wow, super it worked for me :) hurrah !

  • Avatar
    Ratnesh Kumar

    Yes now I am able to log in windows 2012 through RDP on Windows XP.

  • Avatar
    Steven Short

    Great find man. The tspkg is what did the trick. I had found the credssp bit elsewhere, so thanks :)

  • Avatar
    Vijay Kumar

    simple tips... great work...Saved a lot of time.. Thanks.:)

  • Avatar
    ario dhilla

    thank you for this tips yaehhhhhh hahaha

  • Avatar
    Vahid Sadri

    Thank you! Dont work correct for me... !
    after restart windows xp, Password prompt message!!!
    have you any solution to fix it??

  • Avatar
    Bhuwnesh Jain
    Great Details thank you so much brother........
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