mounting passwordless SMB share results in permission denied error

Here's what I did:

mkdir /mnt/sharedmount -v -t cifs //192.168.1.128/shared /mnt/shared

When I do that I'm prompted for a password. When I just hit enter (since the share I'm trying to connect to is passwordless) I get this:

mount.cifs kernel mount options: ip=192.168.1.128,unc=\\192.168.1.128\shared,user=root,pass=*******mount error(13): Permission deniedRefer to the mount.cifs(8) manual page (e.g. man mount.cifs) and kernel log messges (dmesg)mount: (hint) your fstab has been modified, but systemd still uses       the old version; use 'systemctl daemon-reload' to reload,

Any ideas?