Enjoying my 48in E-series 4k TV, but have a couple...

Enjoying my 48in E-series 4k TV, but have a couple issues. One is with the SmartCast app not being capable from turning on my TV even though it displays a power on button. The other is that there doesn't seem to be an option to run the TV completely off an ethernet connection and forces a wifi connection. Would still recommend 100%