On Sun, 21 Oct 2018 13:33:52 -0700, Biller
wrote:

USB drive transfers from itself to the Win & PC at approximately
Upload 5.64 MBytes/Sec.
Download 119 MBytes/Sec

That doesn't look like the bottleneck to me.

The NAS is a Buffalo.
I have two of them active on the LAN.

Buffalo is a manufacturer, or brand name, and doesn't say much about how
it's connected and what network speeds it supports. I think I'd skip
right to the end of the tests and simply connect one of the NAS devices
directly to the Win 7 PC. If the transfer speed is what you were hoping
for, the issue is most likely the WiFi connection. In fact, I suspect
the WiFi connection even before doing that simple test.

Both I have tested.
From the Win 7 PC via 5GHz WiFi.

A LAN Speed Test shows approximately.
Upload 0.20 MBytes/Sec
Download 4.97 MBytes/Sec

WiFi is at the top of my list of causes of slow and erratic speed,
especially in your case. Bypass it and see what happens.

--

Char Jackson