If your Router is close to the TV or the ROKU Box or to VIVA Box ,,,please only use ethernet wires from router to Viva Box or to Roku Box then HDMI video signal to TV!! If yr TV has an ethernet port behind and has a Roku App installed on the TV ,,,,,Run a hard wired ethernet cable directly to your TV,,,then use the Roku app to download the viva App and you will be OK!!