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System.SystemException: The trust relationship between this workstation and the primary domain faile

Posted By:      Posted Date: October 18, 2010    Points: 0   Category :.NET Framework
 

I posted this question in Security for Applications in Microsoft Windows, but I wasn't sure which forum is best, so I repost my question here too.

I get this trust exception on one of my users machine when he is not connected to our internal network when I call WindowsPrincipal.IsInRole.

To better understand the issue I wrote a small test-program. The test-program works without problem when he is in the office or connected via VPN, but each sid that is a domain group results in the trust exception when he isn't connected. When I run the same program on my machine and without connection to our internal network it also works without problem.

I have extract the issue into a small program and this is all the code:

    public partial class Form1 : Form
    {
        WindowsIdentity user = WindowsIdentity.GetCurrent();

&nbs


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