Last but not least - Verify that the PC's Wi-Fi is turned on. (You may need to physically flip a switch on the PC to enable it.) Try using a different Wi-Fi-enabled device to see if the Internet connection is down or if there's something wrong with the router. A working connection on another device would suggest that there's something wrong with the network adapter in your PC. Run the Network Diagnostic tool. Click Start, select Control Panel, choose Network And Internet, and select Network And Sharing Center. Under View Your Active Networks, select the link next to Connections and click the Diagnose button.
You'll want to check the physical connections to your router to see if all the cords are securely connected. A loose connection may explain why the Web drops intermittently. It's possible that the cable may have a cut or kink that causes a fault in the connection. Try replacing the Ethernet cable.
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