I use samba 3.0.10 on my linux box and I would like to access to a winXP LSD (it's a kind of light windows based on Service Pack 2 (SP2)). Unfortunately, it doesn't work although it worked with a SP1 windows. Here is what I have done : $ smbclient -L ip_winxp .... added interface ip=192.168.0.4 bcast=192.168.0.255 nmask=255.255.255.0 Netbios name list:- my_netbios_names[0]="PINGPENG" Client started (version 3.0.10). Connecting to 192.168.0.8 at port 445 socket option SO_KEEPALIVE = 0 socket option SO_REUSEADDR = 0 socket option SO_BROADCAST = 0 socket option TCP_NODELAY = 1 socket option IPTOS_LOWDELAY = 0 socket option IPTOS_THROUGHPUT = 0 socket option SO_SNDBUF = 16384 socket option SO_RCVBUF = 16384 socket option SO_SNDLOWAT = 1 socket option SO_RCVLOWAT = 1 socket option SO_SNDTIMEO = 0 socket option SO_RCVTIMEO = 0 session request ok write_socket(3,183) write_socket(3,183) wrote 183 size=0 smb_com=0x0 smb_rcls=0 smb_reh=0 smb_err=0 smb_flg=0 smb_flg2=0 smb_tid=0 smb_pid=0 smb_uid=0 smb_mid=0 smt_wct=0 smb_bcc=0 protocol negotiation failed findsmb doesn't print the winxp server A mounting share test : $ smbmount //ip_winxp/share_name mount_point 13868: protocol negotiation failed SMB connection failed I've got a win 98 box too, but when I try to access the win xp, it says that network is busy. I don't think it's a smb packet signature problem, I've tried with packet signature support but it doesn't affect anything. What is the solution (if there is a solution) ? Thanks.