Since my printer problem has changed, I'm starting this new thread as it is somewhat different than the original problem. I have a Windows shared printer that shows up with 'smbclient' if I use the -U option. However, it does not show up if I use the -N option. Instead I get the error: Error returning browse list: NT_STATUS_REVISION_MISMATCH Thus I am unable to set up the printer on my CentOS 7 system. I guess there are 2 possible solutions. The first is to get 'guest' working and the second is to configure the printer with a username/password. I cannot figure out how to do the second although I would prefer to use the first. Here is my smb.conf: [global] ?????????????? workgroup = DAPWG1 ?????????????? security = user ?????????????? passdb backend = ******** ?????????????? map to guest = bad user ?????????????? printing = cups ?????????????? printcap name = cups ?????????????? load printers = yes ?????????????? cups options = raw [homes] ?????????????? comment = Home Directories ?????????????? valid users = %S, %D%w%S ?????????????? browseable = No ?????????????? read only = No ?????????????? inherit acls = Yes [printers] ?????????????? comment = All Printers ?????????????? path = /var/spool/samba ?????????????? printable = Yes ?????????????? create mask = 0600 ?????????????? browseable = No ?????????????? guest ok = Yes ?? ?? ?? ?? writable = No [print$] ?????????????? comment = Printer Drivers ?????????????? path = /var/lib/samba/drivers ?????????????? write list = root ?????????????? create mask = 0664 ?????????????? directory mask = 0775 # Web directory access [webdir] ?????????????? valid users = dap, at apache ?????????????? writeable = yes ?????????????? browsable = yes ?????????????? path = /var/www ?????????????? hosts allow = 192.168.0.0/255.255.255.0 # ftp directory access [ftp] ?????????????? valid users = dap, at apache ?????????????? writeable = yes ?????????????? browsable = yes ?????????????? path = /var/ftp ?????????????? hosts allow = 192.168.0.0/255.255.255.0 Can someone tell me what is wrong with the config file that causes that error. Failing that, how do I set up that printer for username/password? TIA. -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus