Hmm im personally not a big fan of NFS in a Home Enviroment since you got no eal way to secure it
(Remeber old NFS only by IP Security, NEw one can do much more but isnt setupable in an home enviroment)
Also the Datatransfer / Overhead by Samba aka Windows Shares isnt soo bad and Basically dueable for everyone who knows how to google the instructions.
In other Words: Setup by Samba like now is a Way for everyone and not nessesarly supported here directly (how to setup a winX Share is 10k times described in the net)
NFS Share on the Other Hand is a different animal.
First Makeing the Box a Browser will NOT SOLVE the issue
The Issue is the Brodcast routing from WLAN to LAN by the cheap Home Routers.
If you cannot transport a Samba Broadcast you cannot transport an NFS Broadcast.
Second: Accessing a NFS Share by Windows (or even Setup a Server) isnt dueable for all Windows Versions out of the Box (Win 7 has it Built now but what you do with XP or Vista?)
Easier Solution would be the following:
Host (aka mostly Windows PC) need his fixed IP Address
Client (aka WD Box) need a Fixed Mount on that IP
That way all the Issues are GOne
Again the Issue is NOT the Samba Client on the WD Box - Which is normaly really stable (i dirve a lot of VPN / Samba Servers with uptimes of 600 Days and more except for update Reboots)
NFS (as fine it is in a *nix Server enviroment) woudl just overcomplicate it without beeing a real solution
But just my personal Opinion after 15 Years in that Busniness
PS: Sorry for my Ugly english,… im not an native Speaker so forgive me please - i know i must look like an 12 Year old wrote it