The Roku media box acts as the middle man between your high-speed Internet connection and instant video streaming via Netflix and Amazon Video On Demand. All versions of the Roku support wired and wireless Internet connection. Using an Ethernet cable, you can connect directly to the Roku media box. Depending on the layout of your home and the distance of the computer to the Roku, a wired connection may be more reliable when it comes to stability and speed.
Disconnect the Ethernet cable that is plugged into your broadband modem from your computer and plug it into the "Ethernet" port on the back of the Roku. If you're connecting via a wired router, connect one end of an Ethernet cable into the router and connect the opposite end into the "Ethernet" port on the back of the Roku.
Set your television to the video display mode you are using with the Roku (composite/RCA or HD). Press the "Power" button on the front of the Roku device.
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Use the Roku remote control to navigate the on-screen options.