Apologies for the delay in getting back on this.
I ended up solving the problem a different way. I was using Universal Media Server (3rd party) as a source for my music over my local network to the RPI 3/OSMC sys. I disabled UMS and enabled the Win 10 media server functions and settings for the music directory. Now when I shut down/reboot my Win 10 sys, OSMC/RPI has no problems reconnecting.
All is good.
Thanks much for the offer of help.
Please mark as solved.