Hello, I would really appreciate any help since I am not able to debug this problem. We have a windows 2003 machine talking to a samba share exposed by Fedora Core 2. If I transfer a 5 GB file, it starts the transmission and then stops, sometimes at 1GB sometimes further around 3-4GB. The smbd.log file from the server show the following errors. Aug 4 13:34:35 Server nmbd[26773]: Samba name server Server has stopped being a local master browser for workgroup WORKGROUP on subnet 10.140.18.178 Aug 4 13:34:35 Server nmbd[26773]: Aug 4 13:34:35 Server nmbd[26773]: ***** Aug 4 13:34:52 Server nmbd[26773]: [2006/08/04 13:34:52, 0] nmbd/nmbd_become_lmb.c:become_local_master_stage2(396) Aug 4 13:34:52 Server nmbd[26773]: ***** Aug 4 13:34:52 Server nmbd[26773]: Aug 4 13:34:52 Server nmbd[26773]: Samba name server Server is now a local master browser for workgroup WORKGROUP on subnet 10.140.18.178 Aug 4 13:34:52 Server nmbd[26773]: Aug 4 13:34:52 Server nmbd[26773]: ***** Aug 4 13:41:35 Server nmbd[26773]: [2006/08/04 13:41:35, 0] nmbd/nmbd_incomingdgrams.c:process_local_master_announce(311) Aug 4 13:41:35 Server nmbd[26773]: process_local_master_announce: Server Dell1 at IP 10.140.19.48 is announcing itself as a local master browser for workgroup WORKGROUP and we think we are master. Forcing election. Aug 4 13:41:35 Server nmbd[26773]: [2006/08/04 13:41:35, 0] nmbd/nmbd_become_lmb.c:unbecome_local_master_success(149) Aug 4 13:41:35 Server nmbd[26773]: ***** Aug 4 13:41:35 Server nmbd[26773]: Aug 4 13:41:35 Server nmbd[26773]: Samba name server Server has stopped being a local master browser for workgroup WORKGROUP on subnet 10.140.18.178 Aug 4 13:41:35 Server nmbd[26773]: Aug 4 13:41:35 Server nmbd[26773]: ***** Aug 4 13:41:53 Server nmbd[26773]: [2006/08/04 13:41:53, 0] nmbd/nmbd_become_lmb.c:become_local_master_stage2(396) Aug 4 13:41:53 Server nmbd[26773]: ***** Aug 4 13:41:53 Server nmbd[26773]: Aug 4 13:41:53 Server nmbd[26773]: Samba name server Server is now a local master browser for workgroup WORKGROUP on subnet 10.140.18.178 Aug 4 13:41:53 Server nmbd[26773]: Aug 4 13:41:53 Server nmbd[26773]: ***** Aug 4 14:04:38 Server gdm[1881]: Maximum number of open XDMCP sessions from host ::ffff:127.0.0.1 reached Aug 4 14:33:09 Server smbd[31523]: [2006/08/04 14:33:09, 0] lib/util_sock.c:write_socket_data(430) Aug 4 14:33:09 Server smbd[31523]: write_socket_data: write failure. Error = Connection reset by peer Aug 4 14:33:09 Server smbd[31523]: [2006/08/04 14:33:09, 0] lib/util_sock.c:write_socket(455) Aug 4 14:33:09 Server smbd[31523]: write_socket: Error writing 51 bytes to socket 22: ERRNO = Connection reset by peer Aug 4 14:33:09 Server smbd[31523]: [2006/08/04 14:33:09, 0] lib/util_sock.c:send_smb(647) Aug 4 14:33:09 Server smbd[31523]: Error writing 51 bytes to client. -1. (Connection reset by peer) This is the smb.conf file : [global] smb passwd file = /etc/samba/smbpasswd passwd program = /usr/bin/passwd %u pam password change = yes obey pam restrictions = yes encrypt passwords = yes unix password sync = no security = share socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192 preferred master = no server string = Samba Server load printers = no username map = /etc/samba/user.map log file = /var/log/samba/%m.log name resolve order = host smb ports = 139 [samba] path = /samba writable = yes guest ok = yes guest account = root Please advise. Thanks, Sameer