Wi-Fi or Ethernet for a TV box?

Start with Ethernet when practical

A cable to the router avoids wireless signal interference and is useful as a troubleshooting comparison. It cannot fix every playback issue.

Using Wi-Fi

Place your device where it receives a strong signal. Walls, distance and busy networks can affect performance. Test near the main router if playback is inconsistent.

Compare before changing equipment

Play the same content on Ethernet and Wi-Fi. Record any difference before buying a booster or replacing the TV box.