I faced the same problem and after going through so many proposed solutions online, I found the answer to my problem. The Screen Share feature of the LG Smart TV is interfering with the wifi signal, causing it to go from 200Mbps to less than 2 Mbps. After turning it off, the problem has gone away.
Thank you so much! This fixed a long standing buffering issue I've had when streaming content from my locally hosted Plex server.
Super slow internet (WiFi) when streaming
in LG webOS Smart TV Questions
Posted
Thank you so much! This fixed a long standing buffering issue I've had when streaming content from my locally hosted Plex server.