How to Disconnect Your Roku TV From Wi-Fi Once you’ve connected it to Wi-Fi, your Roku TV will automatically remember your Wi-Fi details and connect in the future. If you want to disconnect it from your wireless network, you can have it forget your Wi-Fi details. This process is simple, but the option is a little buried. To find it, press the “Home” button on your Roku remote to go to the home screen. Navigate to “Settings” on the left side of the home screen and press the “OK” button to open the Roku TV’s settings. On the Settings screen, navigate to System > Advanced System Settings > Network Connection Reset.