I can't speak if they fixed it for LG models but here's the note about Samsung.
http://www.tp-link.es/article/?faqid=510
If you follow the industry they tend to copy the same bugs into other models.
Bob
Hello,
I'm experiencing some difficulties to achieve connection between my TV and wireless router.
The TV catches a week signal since it's on the other end of the house so I bought a TP-LINK WR710N and configured it as a repeater.
The signal that reaches the room is very strong now. I can access the web from a laptop or phone with easy and very fast but...
When I search for wireless points it find 2 connections with the same SSID (the original from the router with a week signal and the one from the repeater).
The thing is that the TV refuses connection with the stronger signal just allowing to connect to the weaker, original signal from the router itself.
When I check the wireless connection it checks the TV and Gateway but it won't check the DNS and then doesn't establish an internet connection.
Can someone assist me on this issue please?
Thanks

Chowhound
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