Plex buffering Issues suddenly

I just loaded PMS Version 1.13.8.5395 on my Ubuntu 16.04 LTS x64 server and locally it runs fine, for 2 full length movies over gigabit Ethernet. I haven’t had a chance to do any remote testing, so your news is relevant to my effort, wish it was better news.

Under Ubuntu 16.04 LTS x64 earlier PMS versions seem to experience less problems, but no “Golden” version found yet. The buffering problems I reported in my last message were against PMS 1.12.2.4929. My experience at 3 different sites, problem sites seem to have “Comcast”, and “Roku” in common. The third site is “Comcast” and new “Samsung SmartTV” which worked perfectly using PMS 1.12.2.4929.

I’m just a user here. Plex staff are being very quiet on this one. So I assume either nobody is looking at the issue, or they are but have nothing to add to what’s already been said. This is a persistent and vexing problem documented in many threads on this site. The effect I see is my “remote” friends no longer use Plex because it doesn’t work for them. I’m the only one still using Plex. New features are great, but don’t matter if streaming doesn’t work flawlessly. Netflix, Hulu, and other streaming services work flawlessly over the same “problem” connections.