Hello, brief reply.
1: Interface mode. Part of the TV is a network cable interface, you can use a router that can connect to the network, with normal network access, set the router parameters can be connected to the LAN interface of the router to the TV for network use.
2, wireless mode. The TV has automatic wireless network reception, open the TV - system Settings - wireless network - wireless name - wireless password - the connection can be used normally. (In the case of broadband, the router can be set up to connect freely.)
3. Other questions. No matter what kind of connection is connected to the Internet cable interface, there is no need to make a wireless connection on the TV. The wireless network has been connected, and there is no need to connect the network cable to the TV.
Wireless generally refers to wifi connection, wired is generally a network cable, connected through the crystal head, wireless because of interference, or block will have signal attenuation, wired less affected. Therefore, the relative wireless cable is stable, if the home line is well laid, or use wireless it.