Ever since updating to Version 1.1.4.2757, remote access continues to buffer.

I am running PMS Version 1.1.4.2757 with Windows 10. After updating PMS on 9/13/16, any of my remote users are no longer able to watch any movies or tv shows on Plex. Every time they start watching, it starts buffering. The only thing that changed with my setup was the update. I have read thru other forums, but have not found anything that helps. I am able to watch using my Roku 3 directly connected to my network, my LG G5 phone, and my Galaxy Tab S. But users outside of my own personal login cannot use on any platform: Vizio Smart TV (Opera), various iPad 2 tablets (iOS), another Roku 3.
Any help would be greatly appreciated. My brother & his family living in Spain uses my Plex library a lot since they cannot get US Netflix or Hulu there.