[RHEL 6] CIFS VFS: Send error in SessSetup = -13

Issue

• Not able to mount CIFS share.

[root@server1 ~]# mount -vvv -t cifs -o username=shrusr01 //winserver1/Diapason_Test /opt/shared
mount: fstab path: "/etc/fstab"
mount: mtab path:  "/etc/mtab"
mount: lock path:  "/etc/mtab~"
mount: temp path:  "/etc/mtab.tmp"
mount: UID:        0
mount: eUID:       0
mount: spec:  "//winserver1/Diapason_Test"
mount: node:  "/opt/shared"
mount: types: "cifs"
mount: opts:  "username=shrusr01"
final mount options: 'username=shrusr01'
mount: external mount: argv[0] = "/sbin/mount.cifs"
mount: external mount: argv[1] = "//winserver1/Diapason_Test"
mount: external mount: argv[2] = "/opt/shared"
mount: external mount: argv[3] = "-v"
mount: external mount: argv[4] = "-o"
mount: external mount: argv[5] = "rw,username=shrusr01"
Password:
mount.cifs kernel mount options: ip=10.10.10.1,unc=\\winserver1/Diapason_Test,,ver=1,user=shrusr01,pass=********
mount error(13): Permission denied
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)

• Logs in /var/log/messages:

Jan 22 12:45:10 server1 kernel: CIFS VFS: Send error in SessSetup = -13
Jan 22 12:45:10 server1 kernel: CIFS VFS: cifs_mount failed w/return code = -13