Hello, We are using samba 2.2.8a on AIX 5.2 ML1 download from: ftp://aixpdslib.seas.ucla.edu/pub/samba/RISC/5.1/exec/samba.2.2.8a.tar.Z The server works fine initially. However, after it had run for some time, we hit the problem that samba not responding to the command "smbclient -L <NB name>". We have done some isolation as below: 1) Trace of the system calls under abnormal scenerio and see something like: getsockopt(3, 65535, 4104, 0x2FF21294, 0x2FF21290) = 0 connext(3, 0x2FF212F0, 16) Err#55 EINPROGRESS 2) When this problem occur, the already connected clients can still work fine. 3) We use the "smbcontrol <PID of smbd> ping <number of packet>" to test ALL the active smbd processes (ps -aef | grep smbd) and see if the smbd response. smbd.log logged something: =============================================================== [2003/09/10 11:21:25, 1] lib/messages.c:ping_message(85) INFO: Received PING message from PID 92566 [none] =============================================================== Seems that the smbd responses but ONLY not responding to "smbclient -L". Do you have any hints on how to debug the problem ? Welcome to advise if the above information is not sufficient. Thanks and Regards, Alex Fung