You might need to provide the vers= option to the mount command to force version 3.0 if you're trying to mount a share from a newer version of Windows. One of our fileservers was recently upgraded to 2012R2 and that's when my mount stopped working. Setting it to vers=3.0 fixed the issue. Like most Samba/CIFS errors the "No such file or directory" message isn't much help.
As an example:
# mount -t cifs //win2012r2/someshare -o cred=/home/foo/.cifs_user,vers=3.0 /mnt/tmphttps://unix.stackexchange.com/questions/120677/can-not-use-mount-cifs-mount-error2-no-such-file-or-director
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