Thnks who answered, upgrading to 2.2.4 solved my problem.
Original post below:
> Hi
>
> I have a strange problem with a samba server,
>
> When I use "smbclient -L myserver" the shares gets listed ok.
>
> When I click on the server icon in a windows explorer box or type
> "\\myserver" I get an "RPC error ocurred" and I can not
open the shares
> list. Same with "\\192.168.xx.xx"
>
> If I type "\\myserver\shared_dir" works fine in the windows box.
>
> I have others samba servers that just works fine with the same smb.conf
>
> I think this is not an authentication problem since I use
> security=share; guest=root
>
> This is the global section in smb.conf:
> [global]
> netbios name = SERVIDOR
> netbios aliases = MOTOR_DB
> workgroup = SERVIDORES
> server string = Samba_SERVIDOR - Servidor de Ficheros
> guest account = root
> log file = /var/log/samba/log.%m
> max log size = 50
> security = share
> os level = 2
> dns proxy = no
> character set = ISO8859-1
> client code page = 850
>
> Hints:
> I captured packets to a "fine_working" server and to this one,
differences
> I see is that in the first one the client negotiates a session:
>
> (First packet, type negprot)
> ------------------------------------------------------
> NBT Session Request
> Flags=0x81000044
> Destination=JORDIVI NameType=0x20 (Server)
> Source=AMARTINEZ NameType=0x00 (Workstation)
> [...]
>
> (List of packets)
> SMB PACKET: SMBnegprot (REQUEST)
> SMB PACKET: SMBnegprot (REPLY)
> SMB PACKET: SMBsesssetupX (REQUEST)
> SMB PACKET: SMBtconX (REQUEST) (CHAINED)
> SMB PACKET: SMBsesssetupX (REPLY)
> SMB PACKET: SMBtconX (REPLY) (CHAINED)
> SMB PACKET: SMBunknown (REQUEST)
> SMB PACKET: SMBunknown (REPLY)
> SMB PACKET: SMBtrans (REQUEST)
> [...]
> -------------------------------------------------------
>
> In the "offending" one, the 2 first packets (negprot / Session
> Request) dont appear:
>
> SMB PACKET: SMBsesssetupX (REQUEST)
> SMB PACKET: SMBtconX (REQUEST) (CHAINED)
> SMB PACKET: SMBsesssetupX (REPLY)
> SMB PACKET: SMBtconX (REPLY) (CHAINED)
> SMB PACKET: SMBunknown (REQUEST)
> SMB PACKET: SMBunknown (REPLY)
> SMB PACKET: SMBtrans (REQUEST)
> SMB PACKET: SMBtrans (REPLY)
> SMB PACKET: SMBtrans (REQUEST)
> [...]
> -------------------------------------------------------------
>
>
> I have also observed that when I click in this workgroup (SERVIDORES) it
> waits some seconds to open the servers list. With others workgroups the
> window is openen much faster.
>
> Any ideas? clients are Windows2000, samba is 2.0.6-9
>