Error with "samba-tool domain join"ERROR(runtime): uncaught exception - (-1073741790, 'Access denied')

[Manuel Alguacil Payán]

When I execute the following command:

root# ./samba-tool domain join my.domain DC -Uadministrator --realm=my.realm


I get the following error:

DC -Uadministrator --realm=my.realm
Finding a writeable DC for domain 'my.domain'
Found DC myDC.my.domain
Password for [my.domain\administrator]:
Password for [my.domain\administrator]:
workgroup is MYWRKGRP
realm is my.realm
checking sAMAccountName
Adding CN=MYMACHINE,OU=Domain Controllers,DC=my.domain
Adding
CN=MYMACHINE,CN=Servers,CN=xxx,CN=Sites,CN=Configuration,DC=my.domain
Adding CN=NTDS
Settings,CN=MYMACHINE,CN=Servers,CN=xxx,CN=Sites,CN=Configuration,DC=my.domain*Join
failed* - cleaning up
checking sAMAccountName
Deleted CN=MYMACHINE,OU=Domain Controllers,DC=my.domain
Deleted
CN=MYMACHINE,CN=Servers,CN=xxx,CN=Sites,CN=Configuration,DC=my.domain
ERROR(runtime): uncaught exception - (-1073741790, '*Access denied*')
  File
"*/usr/local/samba/lib64/python2.6/site-packages/samba/netcmd/*__init__.py",
line 162, in _run
    return self.run(*args, **kwargs)
  File
"/usr/local/samba/lib64/python2.6/site-packages/samba/netcmd/domain.py",
line 180, in run
    machinepass=machinepass)
  File "/usr/local/samba/lib64/python2.6/site-packages/samba/join.py", line
966, in join_DC
    ctx.do_join()
  File "/usr/local/samba/lib64/python2.6/site-packages/samba/join.py", line
871, in do_join
    ctx.join_add_objects()
  File "/usr/local/samba/lib64/python2.6/site-packages/samba/join.py", line
467, in join_add_objects
    ctx.join_add_ntdsdsa()
  File "/usr/local/samba/lib64/python2.6/site-packages/samba/join.py", line
416, in join_add_ntdsdsa
    ctx.DsAddEntry([rec])
  File "/usr/local/samba/lib64/python2.6/site-packages/samba/join.py", line
326, in DsAddEntry
    ctx.drsuapi_connect()
  File "/usr/local/samba/lib64/python2.6/site-packages/samba/join.py", line
305, in drsuapi_connect
    (ctx.drsuapi_handle, ctx.bind_supported_extensions) =
drs_utils.drs_DsBind(ctx.drsuapi)
  File "/usr/local/samba/lib64/python2.6/site-packages/samba/drs_utils.py",
line 144, in drs_DsBind
    (info, handle) = drs.DsBind(misc.GUID(drsuapi.DRSUAPI_DS_BIND_GUID),
bind_info)


In earlier versions of SAMBA4alpha18 this worked fine, but since two weeks
ago, I cannot join any SAMBA to the domain.

I got SAMBA from the GIT repository.

-- 
*
**"Debo confesar que nací a una edad muy temprana."*
* Julius Henry Marx (1890-1977)*