Bug#999797: [Pkg-samba-maint] Bug#999797: Unable to net ads join samba to an active directory domain Failed to join domain: failed to connect to AD: Can't contact LDAP server

[Andrew Bartlett]

For user assistance, please use the samba  mailing list.

You are trying to join as 'root' which isn't a user on the domain, let
alone an administrative one.  

You should use "-Uadministrator" to set the correct user.

Andrew Bartlett