Samba3 Broken Pipe problem URGENT

[Harri.Huttula at outokumpu.com]

Hi all,

We have samba3.0.20a on AIX 5.2 MU7 and we have problems with some of W2K 
and XP clients cant connect to shares at all.
We use samba to connect to Active Directory and most of the clients can 
connect to shares with no problems.

Those clients which cant connect are in different subnets than samba 
server.

Does anybody have any idea what is wrong?

Error logs shows following.

[2005/11/23 03:26:35, 0] lib/util_sock.c:write_data(554)
  write_data: write failure in writing to client xxx.xxx.xxx.xxx. Error 
Broken pipe
[2005/11/23 03:26:35, 0] lib/util_sock.c:send_smb(762)
  Error writing 4 bytes to client. -1. (Broken pipe)
[2005/11/23 06:37:05, 0] lib/util_sock.c:write_data(554)
  write_data: write failure in writing to client xxx.xxx.xxx.xxx. Error 
Broken pipe
[2005/11/23 06:37:05, 0] lib/util_sock.c:send_smb(762)
  Error writing 4 bytes to client. -1. (Broken pipe)
[2005/11/23 06:37:05, 0] lib/util_sock.c:write_data(554)
  write_data: write failure in writing to client xxx.xxx.xxx.xxx. Error 
Broken pipe
[2005/11/23 06:37:05, 0] lib/util_sock.c:send_smb(762)
  Error writing 4 bytes to client. -1. (Broken pipe)
[2005/11/23 07:11:14, 0] lib/util_sock.c:write_data(554)
  write_data: write failure in writing to client xxx.xxx.xxx.xxx. Error 
Broken pipe
[2005/11/23 07:11:14, 0] lib/util_sock.c:send_smb(762)
  Error writing 4 bytes to client. -1. (Broken pipe)


smb.conf

# Global parameters
[global]
        workgroup = WG
        realm = WG.SITE.COM
        log file = /var/log/samba3/log.%m
        dos charset = 850
        unix charset = ISO8859-1
        username map = /usr/local/samba3/lib/user.map.ad
        encrypt passwords = Yes
        dns proxy = No
        nt acl support = No
        netbios name = MACHINENAME
        browseable = no
        server string = UNIX Samba server
        writable = yes
        password server = kdc_1 kdc_2
        os level = 20
        update encrypted = Yes
        security = ADS
        max log size = 50
        deadtime = 1 
        veto oplock files = /*.dll/*.pbd/*.ini/*.bmp/*.lng/*.exe/*.dwg/
        socket options = TCP_NODELAY SO_KEEPALIVE
        keepalive = 0
        preferred master = no
        local master = no
        domain master = no
        log level = 4
        wins server = wins_ip_1 wins_ip_2
        oplocks = no
        level2 oplocks = no
        kernel oplocks = no
        ldap ssl = no
        name resolve order = wins bcast

[homes]
        create mask = 0700
        directory mode = 0700
        force directory mode = 0700
        force create mode = 0700
        writeable = yes
        comment = Homes
        browseable = no
        valid users = %S
        veto oplock files = /*.doc/*.xls/*.ppt/

[share1]
        create mask = 0775
        directory mode = 0775
        writeable = yes
        path = /share1
        force directory mode = 0775
        force create mode = 0775
        comment = Share1
        valid users = @group1 
        guest ok = no
        browseable = no

[share2]
        create mask = 0775
        directory mode = 0775
        browseable = no
        writeable = yes
        guest ok = no
        force directory mode = 0775
        force create mode = 0775
        valid users = @group2
        comment = Share2
        path = /share2

[share3]
        create mask = 0750
        directory mode = 0750
        browseable = no
        writeable = no
        guest ok = no
        force directory mode = 0750
        force create mode = 0750
        valid users = @group3, user3
        comment = Share3
        path = /share/path3



  
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