Hi
You need to start the basics. Also I am assuming that you are running Windows 10...
When did it last work? and what has changed
If other devices in your house works then we know the internet is fine, I would check that the wifi is on the same Wifi network as your router. Without going to deep/technical there should be a option on your Wifi icon, Right click and start "Troubleshotting Problems" run that and see what happens.
If you can plug a network cable and check to see if you at least connect using that.
You need to start the basics. Also I am assuming that you are running Windows 10...
When did it last work? and what has changed
If other devices in your house works then we know the internet is fine, I would check that the wifi is on the same Wifi network as your router. Without going to deep/technical there should be a option on your Wifi icon, Right click and start "Troubleshotting Problems" run that and see what happens.
If you can plug a network cable and check to see if you at least connect using that.