Samba Masters: My original post stated the following: I just upgraded from samba-1.9.15p8 to samba-1.9.18p8 on one of our Sun boxes (Solaris 2.5.1). When I try to connect to the samba server from another machine with smbclient I get the following error message: smbclient -L odin Added interface ip=192.10.11.32 bcast=192.10.11.255 nmask=255.255.255.0 Server time is Wed Oct 28 15:17:47 1998 Timezone is UTC-5.0 Password: Session setup failed for username=ABC myname=BIGSERVER destname=NEWSERVER ERRSRV - ER Rbadpw (Bad password - name/password pair in a Tree Connect or Session Setup are invalid.) You might find the -U, -W or -n options useful Sometimes you have to use `-n USERNAME' (particularly with OS/2) Some servers also insist on uppercase-only passwords As you can see, it is complaining about the name/password pair: why? We are not using shadow passwords so I did not compile it in. We do run NIS. I can use net use or net view from a Windows client to successfully connect to the machine. There are no entries in smb.conf that I am aware of that would cause a problem. Security is set to user. Update: I haven't received any replies yet; however, I have discovered that the guest account (pcguest) can access the server without a problem from either another samba server (smbclient -L odin -U pcguest) or a PC client. This account has a null password. Also, I searched the archives and found many references to this problem but no solutions. So in short, the guest account with a null password can access the server but a valid user account with a password cannot. This machine worked fine with 1.9.15p8. Help!