How to Check your Wireless Signal Strength
Your Roku device provides information on the strength of the wireless signal it is receiving.
Go to Settings > Network
If your Roku device is not connected, select Set up new wireless connection.
If you do not see your network name, you may be too far from the router. Try the steps listed below to improve the wireless signal and then try Set up new wireless connection again.
If you would like to connect to a different router, select Setup new wireless connection and follow the prompts.
When connected, the wireless signal strength will be shown on the screen as Poor, Fair, Good, or Excellent.