So I had the extended coverage with Square Trade. They sent out a service tech and it was figured out the that WiFi card - part of the main mother board was bad. After a few attempts to replace it it was found that the connector was bad. They ended up covering it under the extended warranty and refunded me my money to get a new TV. It did work for a few weeks better till I found the replacement TV and got the check. I did get a new one.. But if you are not covered by warranty, and have a little technical talent. You could take the back off and try to check the connectors on the main Motherboard and WiFi Card. Seems to be a common problem on these TV.