Samba: Random disconnects

[mapsegarra]

Hi all,

After searching, digging and testing I have no more ideas to try. I explain:

I'm trying to setup a small local File Server (Ubuntu Server 10.04 and Samba
3.4.7) After looking at the forums about the configurations of Samba and
Windows I managed to get all the network running at 99%. The remaining 1% is
that the connection to Samba from Windows 7 is performed intermittently.

XP pcs have no problem accessing, mount drives, read and write to the Samba
server. It seemed that Windows 7, after edit various, either. But after a
few minutes (sometimes seconds) Windows 7 is no access to the server more,
and after a few minutes reconnects.

The access is done with user authentication and permissions are handled in
Ubuntu

I record some traffic with Wireshark, but I'm not have enogh level to draw
conclusions.

Best Regards!

Ubuntu Server 4.10 + Samba: 185.0.200.151
PC Windows 7 185.0.200.56


smb.conf

[global]
    workgroup = NPG
    server string = SERV-FICHEROS
    netbios name = SERV-FICHEROS
    wins support = no
    dns proxy = no
    name resolve order = lmhosts host wins bcast
    interfaces = 127.0.0.0/8 eth0
;    bind interfaces only = yes
    deadtime = 0

    printcap name = /dev/null
    load printers = no
    printcap cache time = 0
    show add printer wizard = no
#### Win7 Support ####
    client ntlmv2 auth = yes    
    client lanman auth = yes
    lanman auth = yes
    ntlm auth = yes

#### Debugging/Accounting ####
    log file = /var/log/samba/log.%m
    max log size = 1000
    syslog = 0
    panic action = /usr/share/samba/panic-action %d
####### Authentication #######
    security = user
    encrypt passwords = yes
    passdb backend = tdbsam
    obey pam restrictions = yes
    unix password sync = yes
    passwd program = /usr/bin/passwd %u
    passwd chat = *Enter\snew\s*\spassword:* %n\n
*Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .
    pam password change = yes
    map to guest = bad user

############ Misc ############
#    SO_RCVBUF=8192 SO_SNDBUF=8192
    socket options = TCP_NODELAY

# Maximum number of usershare. 0 (default) means that usershare is disabled.
    usershare max shares = 100

# Allow users who've been granted usershare privileges to create
# public shares, not just authenticated ones
   usershare allow guests = yes

############ Shares ############
[FICHEROS-NPG]
    path = /FICHEROS-NPG
    comment = Servidor Ficheros
    hide unreadable = yes
    read only = no
    browseable = yes
#    guest ok = yes
#    create mask = 0775
#    directory mask = 077



samba client log
  ixd_miguel (185.0.200.56) connect to service FICHEROS-NPG initially as
user Manuel (uid=1007, gid=1011) (pid 2180)
[2011/03/01 11:26:30,  1] smbd/service.c:1063(make_connection_snum)
  ixd_miguel (185.0.200.56) connect to service FICHEROS-NPG initially as
user Manuel (uid=1007, gid=1011) (pid 2185)
[2011/03/01 11:26:42,  0] lib/util_sock.c:539(read_fd_with_timeout)
[2011/03/01 11:26:42,  0] lib/util_sock.c:1491(get_peer_addr_internal)
  getpeername failed. Error was Transport endpoint is not connected
  read_fd_with_timeout: client 0.0.0.0 read error = Connection reset by
peer.
[2011/03/01 11:26:42,  1] smbd/service.c:1240(close_cnum)
  ixd_miguel (185.0.200.56) closed connection to service FICHEROS-NPG
[2011/03/01 11:29:22,  0] lib/util_sock.c:539(read_fd_with_timeout)
[2011/03/01 11:29:22,  0] lib/util_sock.c:1491(get_peer_addr_internal)
  getpeername failed. Error was Transport endpoint is not connected
  read_fd_with_timeout: client 0.0.0.0 read error = Connection reset by
peer.
[2011/03/01 11:29:22,  1] smbd/service.c:1240(close_cnum)
  ixd_miguel (185.0.200.56) closed connection to service FICHEROS-NPG
[2011/03/01 11:31:30,  0] lib/util_sock.c:539(read_fd_with_timeout)
[2011/03/01 11:31:30,  0] lib/util_sock.c:1491(get_peer_addr_internal)
  getpeername failed. Error was Transport endpoint is not connected
  read_fd_with_timeout: client 0.0.0.0 read error = Connection reset by
peer.
[2011/03/01 11:31:30,  1] smbd/service.c:1240(close_cnum)
  ixd_miguel (185.0.200.56) closed connection to service FICHEROS-NPG
[2011/03/01 12:08:35,  0] lib/util_sock.c:539(read_fd_with_timeout)
[2011/03/01 12:08:35,  0] lib/util_sock.c:1491(get_peer_addr_internal)
  getpeername failed. Error was Transport endpoint is not connected
  read_fd_with_timeout: client 0.0.0.0 read error = Connection reset by
peer.
[2011/03/01 12:41:22,  0] lib/util_sock.c:539(read_fd_with_timeout)
[2011/03/01 12:41:22,  0] lib/util_sock.c:1491(get_peer_addr_internal)
  getpeername failed. Error was Transport endpoint is not connected
  read_fd_with_timeout: client 0.0.0.0 read error = Connection reset by
peer.

Wireshark traffic recording
http://samba.2283325.n4.nabble.com/file/n3339265/samba_vs_w7_filt.pdf
samba_vs_w7_filt.pdf 


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