If a computer is unable to configure a valid Internet Protocol address, it can't connect to a network. If you plug a laptop directly into a modem with an Ethernet cable and receive a "No Valid IP ...

Windows comes pre-configured for Internet access via Ethernet. If your computer includes an Ethernet adapter as many do, connecting your computer to the Internet is as simple as connecting a cable.

Before installing your new modem, you need to disconnect your old modem from your cable wall outlet and computer first. Connect the modem power cord into an electrical outlet. Connect the other end to ...

Learn three ways to connect your computer to the internet using USB ports, including adapters and phone tethering.