First of all you need the following packages to be able to access windows file servers:
These packages give you some tools to check that you are able to access Windows share folders through the network using SAMBA protocols.Here is some useful information : https://fr.wikibooks.org/wiki/Administration_r%C3%A9seau_sous_Linux/Samba
To test the server accessibility
The output gives you some useful information about the available services. In fact you can't access the root of CORTO but the services OK.
If you choose to access the Salle_Blanche Disk
Share Name then you can create a shortcut or directly via Thunar using :
and then to create shortcut on the Desktop (Bureau) to access it faster: