Error login LG webOS 4 and LG netCast

We are all in the same boat here.

I’ve been looking into this issue in my own post here: https://forums.plex.tv/t/lg-28tn515s-plex-is-not-reachable, but without knowing the exactly reason that plex has pulled the plug it’s very hard or impossible to know if it is possible to find a suitable resolution.