Use the Roku mobile app on your phone
Connect your phone to the same Wi-Fi network the Roku TV used before, if possible
Open the Roku app and sign in
Tap Devices and select your Roku TV
Use the app’s remote feature to navigate to Settings
Go to Network
Select Set up connection
Choose Wireless
Select your Wi-Fi network
Enter the Wi-Fi password
Wait for the TV to connect
Use an Ethernet cable if your Roku TV has an Ethernet port
Plug the TV into your router
Use the Roku app or TV menu to switch to the wired connection if needed
Use a USB keyboard or mouse if your Roku TV supports it
Navigate the TV menus to reach Network settings
Select your Wi-Fi network and enter the password
Use your TV’s physical buttons if available
Open the network settings through the TV menu
Select and connect to your Wi-Fi network
If the Roku app cannot find the TV, reset the network settings on the TV
Reconnect the TV to Wi-Fi through the setup menu
If needed, perform a factory reset and set up the TV again without the remote using the Roku app or TV buttons