Refresh the page
At the top of the browser, near the address bar, there should be a “refresh” symbol. Depending on your browser it may be in a different location, but it is generally in the top left corner. Click this, and your page will refresh.
Locate the power button or the power cable on your router
Hold down the power button or unplug the power cable
Wait 15-20 seconds
Either use the power button to turn the router on, or re-plugin the power cable
Wait for the router to finish powering on
Reconnect your computer to the network