FWIW I just recently got a Synology NAS DSJ-214 play is the model number I believe, and it's hardwired to my modem/router via an ethernet cable. From there it communicates wirelessly to my Sonos which can be controlled from my laptop, iphone, or if I had one tablet. Since installing it I've experienced virtually no dropouts,the ones that have occurred have basically been during internet outages.
Servers: Are we there yet?
I was shocked to discover that my brand-new high-end server is entirely dependant on a functional wireless network. If either the Ipad or the wifi are not working, the server is rendered non-functional. I spoke to the dealer and he informed me that all the servers he carries are like that. Huh?!?