Today Windows10 comes without SMB1 support. This is the reason why the fvdw NAS systems are not visible in the Explorer network section.
You have to disable SMB2 and/or SMB3 protocol and to enable SMB1 support to make the fvdw NAS systems visible again in the Explorer network section.
=> Systemsteuerung => Programme und Funktionen => Windows-Features aktivieren oder deaktivieren => Unterstützung für die SMB 1.0/CIFS-Dateifreigabe
Microsoft points out some disadvantages in speed and functionality if you disable SMB2 / SMB3
https://support.microsoft.com/de-de/help/2696547/how-to-detect-enable-and-disable-smbv1-smbv2-and-smbv3-in-windows-and(sorry I couldn't find the english version)
f.y.i.
http://www.kossboss.com/?p=2661From Windows10 point of view it would be nice to have an actual samba server version.