When I tried to open remote video files with VLC via a Samba share , but I got this error message:
Your input can't be opened:
VLC is unable to open the MRL 'smb://...'
It seems that this problem is related to credentials and can be fixed by entering the credentials for the Samba share in the VLC preferences
Tools > Preferences > Input / Codecs > Access Modules > SMB Input
insert user and password
user :
password :
domain :
good luck