If you’ve a Netflix account, check the network connection using their app. Settings -> Help -> Check Network Connection. It checks connectivity and download speed to their servers.
Regarding the Plex app, instead of resetting entire TV to factory defaults:
- Delete the Plex app from the TV.
- Power off the TV.
- Pull the power (remove from mains) for ~30 seconds.
- Restore power.
- Power on, re-install and re-authorize app.
- Verify app version in Plex app settings. Current version is 4.27.1.
The above makes sure you have the current version of the Plex app.
You should only have to do it once.
Try it, see if it helps, and report back.
Note 1: The wired Ethernet port is 100 Mbps. The 5GHz wireless supports 802.11ac and is faster than the wired port if you’ve a solid signal. It can help when playing high-bitrate videos such as 4K HDR in Plex.
Note 2: The reason for removing power is to fully stop any background processes. Turning off the TV only puts it to sleep, which does not necessarily stop/unload any running apps. This can also help if the TV or Plex app becomes unstable. It only takes a minute and can potentially save having to reset to factory defaults or removing/re-installing apps.
