Greetings I am running SMB on OS X Server 10.5.6, it's not clear what version of SMB they use. I have a Windows XP box that mounts a network drive on the server. This mount disappears from time to time for no apparent reason: [2009/03/12 08:35:54, 2, pid=23189] /SourceCache/samba/samba-187.8/ samba/source/smbd/process.c:timeout_processing(1371) Closing idle connection [2009/03/12 09:06:23, 0, pid=23693] /SourceCache/samba/samba-187.8/ samba/source/lib/util_sock.c:set_socket_options(261) Failed to set socket option SO_KEEPALIVE (Error Invalid argument) [2009/03/12 09:06:23, 0, pid=23693] /SourceCache/samba/samba-187.8/ samba/source/lib/util_sock.c:set_socket_options(261) Failed to set socket option TCP_NODELAY (Error Invalid argument) [2009/03/12 09:06:23, 0, pid=23693] /SourceCache/samba/samba-187.8/ samba/source/lib/util_sock.c:get_peer_addr(1224) getpeername failed. Error was Invalid argument [2009/03/12 09:06:23, 2, pid=23693] /SourceCache/samba/samba-187.8/ samba/source/smbd/reply.c:reply_special(328) netbios connect: name1=NEWYORK name2=BRITNEY-IPAR [2009/03/12 09:06:23, 2, pid=23693] /SourceCache/samba/samba-187.8/ samba/source/smbd/reply.c:reply_special(335) netbios connect: local=newyork remote=britney-ipar, name type = 0 [2009/03/12 09:06:23, 0, pid=23693] /SourceCache/samba/samba-187.8/ samba/source/lib/util_sock.c:write_data(562) write_data: write failure in writing to client 172.26.15.51. Error Broken pipe [2009/03/12 09:06:23, 0, pid=23693] /SourceCache/samba/samba-187.8/ samba/source/lib/util_sock.c:send_smb(761) Error writing 4 bytes to client. -1. (Broken pipe) [2009/03/12 09:06:23, 2, pid=23694] /SourceCache/samba/samba-187.8/ samba/source/smbd/sesssetup.c:setup_new_vc_session(1260) setup_new_vc_session: New VC == 0, if NT4.x compatible we would close all old resources. [2009/03/12 09:06:23, 2, pid=23694] /SourceCache/samba/samba-187.8/ samba/source/lib/module.c:do_smb_load_module(64) Module '/usr/lib/samba/auth/odsam.dylib' loaded [2009/03/12 09:06:23, 2, pid=23694] /SourceCache/samba/samba-187.8/ samba/source/smbd/sesssetup.c:setup_new_vc_session(1260) setup_new_vc_session: New VC == 0, if NT4.x compatible we would close all old resources. [2009/03/12 09:08:34, 2, pid=23694] /SourceCache/samba/samba-187.8/ samba/source/smbd/process.c:timeout_processing(1371) Closing idle connection [2009/03/12 09:13:34, 1, pid=7541] /SourceCache/samba/samba-187.8/ samba/source/smbd/service.c:close_cnum(1284) hwi-eas149 (172.26.15.62) closed connection to service encodedrive8 --- here's where the network mount closes--- [2009/03/12 09:13:34, 1, pid=7539] /SourceCache/samba/samba-187.8/ samba/source/smbd/service.c:close_cnum(1284) 172.26.13.68 (172.26.13.68) closed connection to service encodedisk2 [2009/03/12 09:13:34, 1, pid=20953] /SourceCache/samba/samba-187.8/ samba/source/smbd/service.c:close_cnum(1284) emperor (172.26.15.103) closed connection to service encodedisk6 [2009/03/12 09:13:34, 1, pid=7542] /SourceCache/samba/samba-187.8/ samba/source/smbd/service.c:close_cnum(1284) hwi-eas295 (172.26.15.50) closed connection to service encodedrive7 [2009/03/12 09:13:34, 1, pid=7543] /SourceCache/samba/samba-187.8/ samba/source/smbd/service.c:close_cnum(1284) usi-eas45 (172.26.15.104) closed connection to service encodedrive8 [2009/03/12 09:13:34, 1, pid=20953] /SourceCache/samba/samba-187.8/ samba/source/smbd/service.c:close_cnum(1284) emperor (172.26.15.103) closed connection to service encodedisk1 [2009/03/12 09:13:34, 0] /SourceCache/samba/samba-187.8/samba/source/ smbd/server.c:main(890) smbd version 3.0.25b-apple started. Copyright Andrew Tridgell and the Samba Team 1992-2007 [2009/03/12 09:13:34, 2, pid=23896] /SourceCache/samba/samba-187.8/ samba/source/param/loadparm.c:do_section(3804) Processing section "[homes]" [2009/03/12 09:13:34, 2, pid=23896] /SourceCache/samba/samba-187.8/ samba/source/param/loadparm.c:do_section(3804) Processing section "[printers]" [2009/03/12 09:13:34, 2, pid=23896] /SourceCache/samba/samba-187.8/ samba/source/lib/interface.c:add_interface(81) added interface ip=172.26.15.102 bcast=172.26.15.255 nmask=255.255.252.0 The IP in the log is not the same as the static IP associated with the Windows box. Does Windows assign a new IP for a network mount? Here is my smb.conf file: cat smb.conf ; Configuration file for the Samba software suite. ; = = = = =======================================================================; ; For the format of this file and comprehensive descriptions of all the ; configuration option, please refer to the man page for smb.conf(5). ; ; The following configuration should suit most systems for basic usage and ; initial testing. It gives all clients access to their home directories and ; allows access to all printers specified in /etc/printcap. ; BEGIN required configuration ; Parameters inside the required configuration block should not be altered. ; They may be changed at any time by upgrades or other automated processes. ; ; Site-specific customizations will only be preserved if they are done ; outside this block. If you choose to make customizations, it is your ; own responsibility to verify that they work correctly with the supported ; configuration tools. [global] debug pid = yes log level = 1 server string = Mac OS X printcap name = cups printing = cups encrypt passwords = yes use spnego = yes passdb backend = odsam idmap domains = default idmap config default: default = yes idmap config default: backend = odsam idmap alloc backend = odsam idmap negative cache time = 5 map to guest = Bad User guest account = nobody unix charset = UTF-8-MAC display charset = UTF-8-MAC dos charset = 437 vfs objects = darwinacl,darwin_streams ; Don't become a master browser unless absolutely necessary. os level = 2 domain master = no ; For performance reasons, set the transmit buffer size ; to the maximum and enable sendfile support. max xmit = 131072 use sendfile = yes ; The darwin_streams module gives us named streams support. stream support = yes ea support = yes ; Enable locking coherency with AFP. darwin_streams:brlm = yes ; Core files are invariably disabled system-wide, but attempting to ; dump core will trigger a crash report, so we still want to try. enable core files = yes ; Configure usershares for use by the synchronize-shares tool. usershare max shares = 1000 usershare path = /var/samba/shares usershare owner only = no usershare allow guests = yes usershare allow full config = yes ; Filter inaccessible shares from the browse list. com.apple:filter shares by access = yes ; Check in with PAM to enforce SACL access policy. obey pam restrictions = yes ; Don't be trying to enforce ACLs in userspace. acl check permissions = no ; Make sure that we resolve unqualified names as NetBIOS before DNS. name resolve order = lmhosts wins bcast host ; Pull in system-wide preference settings. These are managed by ; synchronize-preferences tool. include = /var/db/smb.conf [printers] comment = All Printers path = /tmp printable = yes guest ok = no create mode = 0700 writeable = no browseable = no ; Site-specific parameters can be added below this comment. ; END required configuration. Can someone point me in the direction of a problem? Thanks Mike