Wireless Internet connections in a spacious area still can present connectivity or speed hiccups if the signal must travel through floors or walls to reach your computer or wireless device.
Cisco wants to solve that problem through its Linksys HomePlug AV Powerline, which is a device that is the size of an electrical-outlet faceplate. The device plugs into an outlet in your home and boosts the strength of the wireless signal (by up to 200 megabits per second) to the computer or wireless device that’s nearest to the outlet. One model includes ports for Ethernet cables if a second computer doesn’t have a wireless connection. The HomePlug AV Powerline sells for $100 or $110, depending on the model.