[Samba] NT_STATUS_CONNECTION_REFUSED with smbclient and samba 4.0.6

[GUEI née worou noee]

Hello,
I'm trying to install samba 4 as a DC following this tutorial 
https://wiki.samba.org/index.php/Samba_AD_DC_HOWTO.

Ihave reached the step of testing the connectivity to the DC with smbclient

[root at DC-TEST ~]#  /usr/local/samba/bin/smbclient -L localhost -U%
session setup failed: NT_STATUS_CONNECTION_REFUSED

Samba 4 has started successfully

[root at DC-TEST ~]# netstat -lntp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address               Foreign Address             State       PID/Program name
tcp        0      0 0.0.0.0:139                 0.0.0.0:*                   LISTEN      1906/smbd
tcp        0      0 0.0.0.0:111                 0.0.0.0:*                   LISTEN      1160/rpcbind
tcp        0      0 0.0.0.0:51505               0.0.0.0:*                   LISTEN      1178/rpc.statd
tcp        0      0 0.0.0.0:22                  0.0.0.0:*                   LISTEN      1261/sshd
tcp        0      0 0.0.0.0:445                 0.0.0.0:*                   LISTEN      1906/smbd
tcp        0      0 :::139                      :::*                        LISTEN      1906/smbd
tcp        0      0 :::111                      :::*                        LISTEN      1160/rpcbind
tcp        0      0 :::22                       :::*                        LISTEN      1261/sshd
tcp        0      0 :::445                      :::*                        LISTEN      1906/smbd
tcp        0      0 :::46598                    :::*                        LISTEN      1178/rpc.statd

Here is an output af smbclient in debbuging mode

[root at DC-TEST ~]#  /usr/local/samba/bin/smbclient -d8 -L localhost -U%
INFO: Current debug levels:
all: 8
tdb: 8
printdrivers: 8
lanman: 8
smb: 8
rpc_parse: 8
rpc_srv: 8
rpc_cli: 8
passdb: 8
sam: 8
auth: 8
winbind: 8
vfs: 8
idmap: 8
quota: 8
acls: 8
locking: 8
msdfs: 8
dmapi: 8
registry: 8
lp_load_ex: refreshing parameters
Initialising global parameters
rlimit_max: increasing rlimit_max (1024) to minimum Windows limit (16384)
INFO: Current debug levels:
all: 8
tdb: 8
printdrivers: 8
lanman: 8
smb: 8
rpc_parse: 8
rpc_srv: 8
rpc_cli: 8
passdb: 8
sam: 8
auth: 8
winbind: 8
vfs: 8
idmap: 8
quota: 8
acls: 8
locking: 8
msdfs: 8
dmapi: 8
registry: 8
params.c:pm_process() - Processing configuration file "/usr/local/samba/etc/smb.conf"
Processing section "[global]"
doing parameter workgroup = SIEGE
doing parameter realm = bceao.int
doing parameter netbios name = Z00-DC01
doing parameter server role = active directory domain controller
doing parameter idmap_ldb:use rfc2307 = yes
doing parameter logfile = /usr/local/samba/log/samba.log
doing parameter wins support = yes
doing parameter hosts allow = 10.67.200.
doing parameter load printers = no
pm_process() returned Yes
lp_servicenumber: couldn't find homes
added interface eth0 ip=10.67.200.22 bcast=10.67.200.255 netmask=255.255.255.0
added interface eth1 ip=10.185.200.68 bcast=10.185.201.255 netmask=255.255.254.0
Netbios name list:-
my_netbios_names[0]="Z00-DC01"
Client started (version 4.0.6).
Opening cache file at /usr/local/samba/var/lock/gencache.tdb
Opening cache file at /usr/local/samba/var/lock/gencache_notrans.tdb
sitename_fetch: No stored sitename for BCEAO.INT
name localhost#20 found.
Connecting to 127.0.0.1 at port 445
Socket options:
SO_KEEPALIVE = 0
SO_REUSEADDR = 0
SO_BROADCAST = 0
TCP_NODELAY = 1
TCP_KEEPCNT = 9
TCP_KEEPIDLE = 7200
TCP_KEEPINTVL = 75
IPTOS_LOWDELAY = 0
IPTOS_THROUGHPUT = 0
SO_SNDBUF = 50748
SO_RCVBUF = 87584
SO_SNDLOWAT = 1
SO_RCVLOWAT = 1
SO_SNDTIMEO = 0
SO_RCVTIMEO = 0
TCP_QUICKACK = 1
TCP_DEFER_ACCEPT = 0
session request ok
session setup failed: NT_STATUS_CONNECTION_REFUSED

Here is the smb.conf file's content

# Global parameters
[global]
workgroup = SIEGE
realm = bceao.int
netbios name = Z00-DC01
server role = active directory domain controller
#dcerpc endpoint  servers = remote
idmap_ldb:use rfc2307 = yes
logfile = /usr/local/samba/log/samba.log
wins support = yes
hosts allow = 10.67.200.
load printers = no

[netlogon]
path = /usr/local/samba/var/locks/sysvol/bceao.int/scripts
read only = No

[sysvol]
path = /usr/local/samba/var/locks/sysvol
read only = No
[test]
path = /var
read only = No
Please may have have you're help
NB : the smbclient's version is 4.0.6 


MMe GUEI NOEE MELAINE
BP 3108 DAKAR SENEGAL
SERVICE INFORMATIQUE