I feel there is possibly a slight communication issue here, maybe I'm missing something.
If you want your Linux clients to access the network share at boot: for my Debian, Pi3, and Mint boxes I added a line similar to below to the /etc/fstab file in all 3 (identical line added to all 3):
//(server.ip.add or name)/sharename /home/username/Music cifs auto,user,credentials=/home/username/netlogin 0 0
Netlogin is a text file with sharing credentials if needed. Get one machine working and go from there.
For the Debian machine I had to add the smb and cifs-util packages; for the Pi3, I had to go into pi settings from main screen and select "Wait For Network At Boot"(?), for Mint it worked out of the box with the added line.
Of course, these will not be MC "clients" now, and will need to do their respective importing, etc. like any other stand-alone pc, and suggest using one (win or Linux) machine as "master" for tagging, etc. All others access pre-tagged and processed files.
Hope this helps.