[samba] wbinfo и пустой пароль

[Serge]

Здравствуйте!
наблюдаю с недавнего времени такую проблемму:
у пользователя с пустым паролем не происходит аутентификация.
wbinfo -a 61%
plaintext password authentication failed
error code was NT_STATUS_NO_SUCH_USER (0xc0000064)
error messsage was: No such user
Could not authenticate user 61% with plaintext password
challenge/response password authentication failed
error code was NT_STATUS_NO_SUCH_USER (0xc0000064)
error messsage was: No such user
Could not authenticate user 61 with challenge/response

Но
ntlm_auth --username 61 --domain TRUST
password:
NT_STATUS_OK: Success (0x0)

Дистрибутив Server 4.0.1 (branch)
samba-common-3.0.25c-alt1
samba-client-3.0.25c-alt1
samba-client-control-1.2-alt1
samba-3.0.25c-alt1