I have been using Plex for some time now and recently (2 months ago or so) switched from a Drobo 5N to the Synology DS916+ with the 5 bay expansion unit. Since I made the switch, I've been having problems with videos stuttering during playback. They'll pause for < 1 second sometimes, other times I simply get the progress bar up on the screen with no pausing of video. The other, most annoying thing, is some time into a show (randomly), a message will come up and say that my connection isn't fast enough to stream the video, even though it will have been working fine so far (sometimes as much as an hour into a movie).
I never had these types of issues with the Drobo, so think it could be something to do with PMS running on the Synology unit.
For clarification, I'm running:
PMS version 1.3.4.3285
Synology:
Model name DS916+
CPU INTEL Pentium N3710
CPU clock rate 1.6 GHz
CPU cores 4
Total physical memory 8192 MB
DSM version DSM 6.0.2-8451 Update 9
My main client that I use is my AppleTV 4 running the latest version of the Plex app there as well. My network connection is good with roughly 90 Mbps.
I have tried optimizing the database, cleaning bundles, and emptying the trash.
Thanks in advance for any help you can provide.