: The authentication mechanism is unknown

[timm_d]

I am trying to use Active Directory to check the groups that the current user is a member of. I was trying to use
HttpContext.Current.User.IsInRole(role) and it always returned false. I am a member of the Domain\WebAdmin group, but
IsInRole("Domain\WebAdmin") returns false when it checks my account against active directory. My server OS is Windows 2000 Server.

I used the following function to run through the debugger and see if I was authenticating to active directory:

=========================================================================================
Public Shared Function GetUserGroupMembership(ByVal strUser As String) As StringCollection
Dim groups As New StringCollection

 

[Travis]

here is a possibility:

http://support.microsoft.com/default.aspx?scid=kb;en-us;321562

 

[timm_d]

Thanks for the reply. I already tried that one though. I removed myself from every group except DOMAIN\WebAdmin and I got the same result.

 

[Rune]

Are you sending your user name and domain separately in the ldap string? if so, try combining them. that solved a similiar problem for me