NSA320 public folder has gone missing

Used to work just fine.  At some point in the last few weeks, the public folders disappeared.  I expect it was a Win10 update that broke it.  Now itunes is lost.  How can I get the public folder back to visible.  I see it when I log in to the NSA device via web browser but it is invisible to the computer and hence to itunes.

#NAS_Oct_2018