Can I disconnect the Wi-Fi and connect my box to the internet with an Ethernet cable?

 Updated 

Yes, there is a dedicated Ethernet port in the box. You can connect to the internet through Wi-Fi or Ethernet cable.

Yes, there are different ways to connect your TV. Just follow these simple steps:

Remove the Wi-Fi dongle and connect the Ethernet cable.

Restart your box.

Press the Menu button on your remote control, select Settings and press OK.

Select System Setup and enter the PIN code: 0000 by default, press OK.

Select Network Preference, press OK.

Choose Ethernet and press the blue button on your remote control to activate the changes.