Can't install Client Authentication Certificate for VPN

[Paul Kavanagh]

I have setup a VPN using L2TP/IPSEC and Win2000 RRAS. It's working perectly
except I can't install a Client Authentication Certificate onto a Windows XP
Home client computer. When I try to install it I get the following error:

Unable to install the certificate. Please verify that your CSP supports any
settings you have made and that your input is valid.

The certficate installed perfectly on all other PC's.

The PC is up to date with all Service Packs etc.

Any ideas?

Thanks,

Paul.

 

[Larry Stotler]

Hello,

Please check the permissions for the following directory;

C:\Documents and Settings\All Users\Application Data\Microsoft\Crypto\.

You may need to reset the permissions for it and its sub-directories. The
actual settings need to be: ADMINISTRATOR - Full Control, SYSTEM - Full
Control and the logged on user - Full Control.

This is talked about in the following article;

841798 "Machine Certificate cannot be installed" error message in Windows XP
http://support.microsoft.com/?id=841798

Larry Stotler, MCSE
Microsoft Product Support

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