By default, Network Discover does not scan files that do not have a file extension in the file name.
To work around this issue, add a wildcard to the DirectoryFileMatch parameter in the VontuFileSystemScanner.cfg file:
Open the SymantecDLP/Protect/config/VontuFileSystemScanner.cfg file in a text editor.
Add this line:
DirectoryFileMatch=*
Save and close the file.
Restart the Vontu Manager service to apply your configuration changes.