My LG TV is connected via Ethernet from Home Hub through Netgear Switch through Draka patch to TV and TV says its connected, settings show so, all is green in settings, message pops up that wired connection is connected, but the TV refuses to stream adequately. it does sometimes but most often not and fails. It fails on WIFI to the BT Home Hub also.
The cabling is fine as everything else i try on the very same cables and set up works perfectly an without any single fault, ATV, BT Box, other.
ive just had LG support on the phone and i connected the TV to my iphone and TV worked perfectly, so they now cant help further.