Hey all. Having the same problem with my OLED65B6T.
So far I've tried:
- Different router, ethernet cables & factory resetting it. When I connect via WIFI I get the same problem.
- Disable QuickStart+, hard shutdown (turn it off, unplug from the wall, manually press and hold the power on button at the bottom of the screen for 15 seconds)
- Opened up the back cover, but couldn't see any ribbon wires that need uncrimping - see photos attached. The cable I circled I removed & cleaned with electronic cleaner.
Things that I might try later:
- Replace RF module board - they go for about $50 on aliexpress
- Get an ethernet to usb adapter - anyone know which one works on the B6?
- Replace the main board - prefer not to lol
This is so frustrating as I upgraded from my 10 year old 40" LG TV that had zero issues. I'm hoping I can fix it, otherwise I'm going to avoid LG products in future.