Recently myself and people using my Plex Server across many devices are having buffering issues. Normally which leads to Plex saying it has a poor or slow connection to the server. I can't figure out why it is having issues now, when I have never had any issues in the past.
Plex Version 1.1.3.2700
Transcoder Quality: Prefer Faster Speed
CentOS 6.8
Running on a VM w/ 8 Cores Intel Xeon X5570 @ 2.93GHz
12GB of memory
Testing download speed........................................
Download: 81.69 Mbit/s
Testing upload speed..................................................
Upload: 19.39 Mbit/s
Sep 02, 2016 21:17:15.585 [0x7f2c37e3b700] VERBOSE - * speed => 7.0
Sep 02, 2016 21:17:23.245 [0x7f2c387ff700] VERBOSE - * speed => 7.4
Sep 02, 2016 21:17:23.748 [0x7f2c37e3b700] VERBOSE - * speed => 9.3