Many laptops have a physical switch or button that you can flip/press to enable or disable the laptop’s wireless adapter. This is handy if you’re about to board a plane and want to quickly turn off the laptop’s Wi-Fi settings or if you don’t need Wi-Fi at the moment and want to conserve battery power. However, it’s easy to forget that you turned the adapter off. If you’re having trouble getting a Wi-Fi connection check that switch on your laptop.