NAS not seen by Win-10 File Explorer
I have a QNap NAS (QNap453B to be specific) that is not being seen by computers with Win-10 File Explorer. (I can create shared drives that see the individual folders on the NAS and to further confuse things the NAS does show up under "Media Devices", but only the music folder is visible. And even more confusing, it is being seen by File Explorer on Win-7 based computers.) I've done all the things that QNap support has recommended without success. They suggest changing the firewall settings as a last resort. Since the firewall settings are being controlled by Norton security, this seems a good place to start but I have no idea which setting(s) to change. I could try the Easter egg approach, but I hope someone has some advice.
Has anyone else had such a problem? Which settings would control how Win-10 File Explorer "sees" what's on the LAN?