Samba - не заливаются большие(>2Gb) файлы на сервер.

При завливке на сервер файла больше, примерно, 2-х Гигабайт в винде пишет ошибку "Указанное сетевое имя более недоступно"(network name is not longer available)
Самба версии 3.4.6
smb.conf

[global]
   workgroup = PROMO
   server string = INTRANET SERVER
   netbios name = CHARON
   security = user
   encrypt passwords = yes
   hosts allow = 10.0.1.0/24 10.0.0.0/24 127. 10.0.2.0/24 192.168.3.0/30 172.30.0.0/15 195.16.42.114 195.16.42.125
   interfaces = eth0

   load printers = no
   show add printer wizard = no
   printing = none
   printcap name = /dev/null
   disable spoolss = yes 

   null passwords = true
   restrict anonymous = yes
   guest ok = no

   syslog only = yes
   syslog = 3
   log level = 2 vfs:1 auth:1 smb:10

   passdb backend = ldapsam:ldaps://ldap.xxx.ru
   ldap delete dn = no
   ldap suffix = dc=xxx,dc=ru
   ldap user suffix = ou=Users
   ldap group suffix = ou=Groups,ou=Samba,ou=Services
   ldap machine suffix = ou=Computers,ou=Samba,ou=Services
   ldap idmap suffix = cn=Idmap
   ldap admin dn = cn=gatekeeper,dc=xxx,dc=ru
   ldap debug level = 1
   ldap ssl = off
   idmap backend = ldap:ldaps://ldap.xxx.ru
   idmap uid = 10000-45000
   idmap gid = 10000-45000

   local master = yes
   domain master = yes 
   preferred master = yes
   domain logons = yes
   wins support = yes

   preserve case = yes
   default case = lower
   max open files = 3200
   time server = yes
   dos filetimes = yes
   fake directory create times = yes
   dos filetime resolution = yes
   delete readonly = yes

   dos charset = CP866
   unix charset = UTF-8
   display charset = UTF-8

   socket options = IPTOS_LOWDELAY TCP_NODELAY SO_KEEPALIVE
   deadtime = 5
   os level = 255


[netlogon]
   comment = Network Logon Service
   path = /var/lib/samba/netlogon
   browseable = no
   writable = no

[_personal]
   path = /storage/samba/shares/personal/%u
   root preexec = /etc/samba/check_personal.sh %u
   create mode = 0600
   directory mask = 0700
   browseable = yes
   writable = yes
   public = no
   valid users = %U
   write list = %U
   force group = smb_users

[exchange]
   path = /storage/samba/shares/exchange
   create mode = 0660
   directory mask = 0770
   browseable = yes
   writable = yes
   valid users = @smb_users
   write list = @domain_admins
   force group = domain_admins

В инете на эту тему ничего внятного не нашёл, выручайте.