Server: Msg 7321, Level 16, State 2, Line 1 An error occurred while preparing a query for execution against OLE DB provider 'ADsDSOObject'. OLE DB error trace [OLE/DB Provider 'ADsDSOObject' ICommandPrepare::Prepare returned 0x80040e14].

Whenever you get this issue make sure your security context is correctly supplied.In that case you have to use domian user acount in sp_addlinkedserver stored procedure whihc has access rights to Active Directory.The domain name is required in the Security settings for the remote login. So in the Security settings I entered Remote login: domain\user; With password: password.Find below dummy example.

Step1:-EXEC sp_addlinkedserver @server = N'ADSI', @srvproduct=N'Active Directory Services', @provider=N'ADsDSOObject', @datasrc=N'LINLDP2'

Output : Success

Step2: EXEC sp_addlinkedsrvlogin @rmtsrvname ='ADSI', @useself='false', @rmtuser='Domainname\username', @rmtpassword='#Security@SWIM#'

Also,Make sure your SQL Server Service is running under the account which has access right to Active Directory.