What to do when your laptop doesn't connect to the wireless internet router

You could be using your laptop now on the internet and when the internet router goes off, probably because there isn't electricity, you then try to reconnect when the light comes on. You can see the that the wireless connection is showing on your laptop but you can no longer connect to it.
Probably, what you just need to do is go back to the desktop, where you have the icons, try to refresh the Windows several times then try to reconnect. 
If it doesn't work, try switch off your laptop because that helps to restore your laptop settings. Once they're reset, it could connect to the internet. Many times, you'll find that the wireless is already connected when you boot your laptop Windows.
If it doesn't, maybe the wireless internet drive is at fault and may need to be reinstalled. It helps for you to look for Windows Drivers and try reinstalling the Wireless Driver. 
That should do it.