Hi people, After upgraded samba from 3.0.32 to 3.2.6 in Dec 11, we've never had the "server hang" problem again - thank to samba team. As with the win98/Me users I added "lanman auth = yes" into smb.conf and mapped samba share in windows. There is a "little" problem, though. The mapped directory dissapear randomly. But if we refresh it, it will show up again. To handle this, I add "streams_xattr" value in smb.conf: vfs objects = full_audit streams_xattr I'm monitoring it now and I will let you know the result. Many thanks for every effort you've done.