Check your internet cables. If everything is on its places. Then look at the wifi icon on your computer. Check your router. Pay attention to the one that designates connection to the Internet. If that light is out, the wifi isn’t channeling an Internet connection. Also I suggest to see this webpage http://192-168-1-1.one it will help you ro figured out with the router settings.Before you do anything else, restart your router and modem. You might have just temporarily hit a bug and a quick reboot will fix it.