Finding the Wi-Fi dead zones in your building or home is simple. You probably already know where several are if you’re trying to figure out how to fix your internet. To find the dead zones, turn on the Wi-Fi on your device and start moving around the room. If you see the signal drop or go to zero, you’ve found a dead zone. Move slowly, though, because signals don’t update instantly. You can also try streaming or downloading something on your computer in each of your rooms to detect which area is receiving the weakest signal.