Versalink C405 - High Sierra SMB scan problem

Hi,

I know that with recent updates FTP scan with High Sierra is not possible anymore.

So we are trying to use SMB instead as know it is working. We succesfully use SMB scan with High Sierra and a WorkCentre 6605 by simply sharing a folder within MAC OS using port 445 but when we try to use it with a VLC405 it doesn't work giving error  018-762.

What does it mean? Are they using different SMB versions?

Thank you