[ubuntu] UBUNTU Samba File Server with Win LDAP Authentication

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http://ubuntuforums.org – I am trying to set up a samba file server (on 12.04) that will authenticate through our existing Windows 2008 r2 active directory server. My smb.conf is below. What I don't understand is that when I run "sudo smbclient -L <samba_ip> -U <user>" with the correct password I get the listing of shared folders, and when I supply the incorrect password I get "session setup failed: NT_STATUS_LOGON_FAILURE". So, I feel like the authentication is working. But, when I try to connect using "smbclient -U<user> \\\\<samba_ip>\\Profiles" I get, " (Hardware)