All Internet modems can be reset by unplugging the power cable from the modem for 15-20 seconds.

On the back of the cable modem there should be three separate wires attached to the device. The coax cable screws into the modem and looks like the cable that screws into your TV. The Ethernet cord has a clip and looks like a phone cord, the end is just wider. The power cord will be a small black cord that resembles a cell phone charger and should be able to be pulled out without unscrewing or unhooking anything. Once you plug the modem back in, reboot your computer to ensure that everything will have new settings.