How do you fix Cannot connect to network?
Restart your device.
Open your Settings app and tap Network & internet or Connections. Depending on your device, these options may be different. Turn Wi-Fi off and mobile data on, and check if there's a difference. If not, turn mobile data off and Wi-Fi on and check again.
Why does my network say can't connect to this network?
Your wired connection isn't plugged in properly. Your device is out of Wi-Fi range. Wi-Fi interference, problems with your internet provider. Outdated or missing network adapter drivers.