Sorry for all my emails. I don't know where to post this problem, so I also post it to the ntdom mailing list... Since I upgrade to 2.0beta5, I got a lot of messages like this in log.smb: [1999/01/08 16:30:38, 0] smbd/oplock.c:(734) oplock_break: receive_smb timed out after 30 seconds. oplock_break failed for file GN/previsions/previsions 99/previsions globales 99.xls (dev = 800073, inode = 904801). [1999/01/08 16:31:20, 0] smbd/oplock.c:(804) oplock_break: client failure in break - shutting down this smbd. When this happen, my samba server become very slow and files open by PC users are often lost. I was working with 1.9.18p7 before and never saw this problem. Does the "blocking locks" paramater has something to do with oplock ? Can I use "oplocks = False" as a (poor) workaround ? Thanks. Maurice. My configuration: --------------- samba 2.0.0 beta 5 on Solaris 2.5.1 PC are WinNT4 SP3 and Win95 smb.conf: --------- [global] workgroup = SAMBA security = user logon script = logon.bat logon path = \\%L\%U\.%a-profile domain logons = yes encrypt passwords = yes passwd program = /bin/passwd %u passwd chat = *Enter*login*password* %o\n *New*password* %n\n *enter*new*password* %n\n *changed* unix password sync = yes domain admin group = @group1, @group2 ; printing printing = sysv printcap name = /opt/samba/lib/printcap load printers = No print command = (lp -d%p -c -s -o nobanner %s; sleep 120; rm -f %s) & lpq command = lpstat -o%p lprm command = cancel %p-%j ; Char set character set = iso8859-1 client code page = 850 valid chars = à:À â:Â ä:Ä ç:Ç é:É è:È ê:Ê ë:Ë î:Î ï:Ï ô:Ô ö:Ö ù:Ù û:Û ü:Ü æ:Æ £ § µ preserve case = yes short preserve case = yes ; divers debug level = 0 dont descend = ./etc,./var dead time = 15 strip dot = yes nis homedir = true guest account = public max connections = 30 invalid users = root dos filetimes = yes dos filetime resolution = yes ; wins server et wins support wins support = yes name resolve order = lmhosts wins host bcast ; master browser os level = 129 preferred master = yes domain master = yes local master = yes [netlogon] comment = Logon scripts location path = /outils/netlogon browseable = no locking = No [homes] comment = Sweet Home browseable = no writable = yes max connections = 5 [printers] comment = All Printers path = /tmp browseable = no public = yes printable = yes create mode = 0700