Why does authenticating against LDAP with DirectoryEntry intermittently throw COMException (0x8007203A): “The server is not operational”?
问题 If anybody has a similar story, please post details below! I'm building an ASP.NET website which needs to support authentication against LDAP. On windows, LDAP auth can be performed via Active Directory (I'm no expert, but AD seems to simply be a particular flavor of ldap). I don't control the AD and/or LDAP servers. I've tried various methods of authentication, but I've settled on using a single DirectoryEntry per authentication attempt: using (DirectoryEntry de = new DirectoryEntry(ldapPath