Ongoing problem with Sony TV and where the problem is?

Getting a Shield will improve things in 2 ways:

  1. its ethernet port is not limited to 100 mbps
  2. it can play more audio and video and subtitle formats than the native Plex app for your TV – so the server has less often to transcode

You may want to wait a few more weeks (or mere days?) until the refreshed Shield models have been released: New shield leak - upgraded SOC + new remote + possible dolby vision