Medilink uses the Borland Database Engine to access a ParadoxSQL database. This is an old and relatively simple file based database, but may be a little different from what you are used to.

Access to the database is via standard file I/O, which means SMB/CIFS plus NetBIOS/WINS for name resolution.

So you should open ports:

UDP 137 and 138

TCP 139 and 445

More info here: