We have recently upgraded to Samba 2.05a on HPUX 10.20 and 11.0 from version 1.9 & 2.0. Since this upgrade, we have experienced the following issues and problems: 1) Lost connections to samba drives from Win95 pcs. 2) Failure to authenticate mounted drives from NT machines. 3) Using smbstatus, getting "semaphores not started by root" errors 4) Several inexplicable error messages. To expand: 1) On several different Win95 PCs, connections have been dropped to various samba drives; this has sometimes resulted in machines hanging or crashing. 2) NT machines have failed to authenticate users, given passwords that are identical to the ones used to log into the NIS domain. Logging out and logging in cures this problem in some cases. 3) On HPUX 10.20 and 11.00, on some machines, running the smbstatus command produces the following error: Service uid gid pid machine ---------------------------------------------- ERROR: root did not create the semaphore ERROR: Failed to initialize share modes Can't initialise shared memory - exiting In addition, the server is unreachable. 4) Logging at level 0 produces the following error messages: [1999/09/03 13:47:36, 0] lib/util_sock.c:(570) write_socket_data: write failure. Error = Broken pipe This messages occurs 24 hours a day, at intervals varying between 3 minutes and 2 seconds. There is no apparent correlation between the intervals and any usage patterns on the system. Logging at levels up to 3 have failed to generate any other messages that relate to this, as far as we can tell. On one server, this message appeared after a user logged off, and then repeated exactly every 6 minutes - there were no other users on the system. We also have been getting oplock timeout and other error messages. Logging on an authentication server produces the following messages for *some* logins: [1999/09/03 08:22:08, 0] smbd/password.c:(550) Error: challenge not done for user=hscharno According to the documentation, it appears that the challenge is part of using the smbpassword option, but this is not entirely clear; we are authenticating from NIS hosts. Any help or clarification you could give us on these issues would be greatly appreciated; at the moment we are preparing to roll back to Samba 1.9, since these problems are making the environment unacceptable to our users. We have concerns about the Y2K-compliance about 1.9, so if this version is compliant, please let us know. Thank you for your time.