smb error win7

## Samba Conf ##
[global]
   workgroup = plop
   server string = %h serveur
   security = user

   netbios name = plop
   dns proxy = no
   log file = /var/log/samba/log.%m
   max log size = 1000
   syslog = 0
   panic action = /usr/share/samba/panic-action %d
   log level = 3
   server role = standalone server
   passdb backend = tdbsam
   obey pam restrictions = yes
   unix password sync = yes
   passwd program = /usr/bin/passwd %u
   passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .
   pam password change = yes
   map to guest = never
   map untrusted to domain = Yes
   unix charset = UTF-8
   dos charset = 850

## Error MSG ##
[2015/05/23 11:35:18.906698,  3] ../source3/auth/auth.c:177(auth_check_ntlm_password)
  check_ntlm_password:  Checking password for unmapped user [kin-splio-PC]\[kin-splio]@[KIN-SPLIO-PC] with the new password interface
[2015/05/23 11:35:18.906736,  3] ../source3/auth/auth.c:180(auth_check_ntlm_password)
  check_ntlm_password:  mapped user is: [ATELIER]\[kin-splio]@[KIN-SPLIO-PC]
[2015/05/23 11:35:18.906842,  3] ../source3/auth/check_samsec.c:399(check_sam_security)
  check_sam_security: Couldn't find user 'kin-splio' in passdb.
[2015/05/23 11:35:18.906897,  2] ../source3/auth/auth.c:288(auth_check_ntlm_password)
  check_ntlm_password:  Authentication for user [kin-splio] -> [kin-splio] FAILED with error NT_STATUS_NO_SUCH_USER
[2015/05/23 11:35:18.906958,  2] ../auth/gensec/spnego.c:743(gensec_spnego_server_negTokenTarg)
  SPNEGO login failed: NT_STATUS_NO_SUCH_USER
[2015/05/23 11:35:18.965728,  3] ../source3/smbd/server_exit.c:221(exit_server_common)
  Server exit (NT_STATUS_END_OF_FILE)