"A Windows host shouldn't make a difference"
There is no Host, for NAS. That's why you can attach it physically to your Router.
The issue for NAS is "nonmanaged." The links I provided included other links.
"Lacerte isn't running on it in conjunction with the hosts"
For these types of programs and/or files, you want an installation that is also Managed, to avoid conflicts. NAS = indiscriminating library shelving.
"it just sits there."
"Essentially it's acting as a file/folder share. Is there something I'm missing?"
Not you. Your System is missing that there needs to be some management. This is a known issue for how NAS functions. It is part of the intent for creating and the basis for using NAS.
"Level Up" is a gaming function, not a real life function.