Great news. Thank you again.
Roon 1.2.161
Mac Mini, OS 10.11.6, 8GB RAM
Synology 2414
USB to wired network on both ends
~200,000 tracks
Outputting to Benchmark DAC
NETGEAR ProSAFE 24-Port Gigabit PoE Smart Managed Switch
Synology has WFS enabled, SMB3, per another post’s suggestion