Fellow Members, this is not a solution but a “workaround” on my 4 year old LG B6 OLED: I connected the TV to the net solely through a very good wireless connection. It has streamed well this way for about a year. Although I would prefer a wired connection, it appears that capability is not possible on my model without the annoying, stupid, pesky messages.
Has LG fixed this bug on the new models? If not, it may impact future purchases, although I believe the OLED picture is still the best.
Take Care.