samba - Aug 2014 - Failure to add computer to domain

This is another computer which we have similar problem.
This is freshly installed windows 8.1 pro.

When trying to add to domain, entering good login (administrator) and
password results in "Logon failure: unknown user name or bad
password".
Password works on on other machines and kerberos. I can ping domain.

I can add this computer to AD by typing login: administrator at domain, and
passwords is accepted.
Computer account is added to Computers OU in AD, but I cannot login on
any account from AD, even on Administrator or administrator at domain or
domain\administrator.

This is second computer with this problem, and this was was freshly
installed and never been added to anyother AD.

On Thu, 2014-08-07 at 07:57 +0200, Micha? P??rolniczak
wrote:
> This is another computer which we have similar problem.
> This is freshly installed windows 8.1 pro.
> 
> When trying to add to domain, entering good login (administrator) and
> password results in "Logon failure: unknown user name or bad
password".
> Password works on on other machines and kerberos. I can ping domain.
So you can't add the computer to the domain...
> 
> I can add this computer to AD by typing login: administrator at domain, and
> passwords is accepted.
But now you can?

Do you have a Samba4 domain controller? Can you post smb.conf? The error
log?