There are a few things you can do to ensure to provide the best possible internet connection when using a Wi-Fi extender:

1. Position the extender in an open area, away from walls and furniture
   
2. Place the extender halfway between your router and your device
   
3. Set a reliable channel for your extender
   
4. Slow down wireless speeds if your router supports it
   
5. Use the same SSID for both your router and the extender