My internet speed as measured on speedtest.net is 10 Mbps from my desktop computer, which is connected via ethernet to the router. When I measure my speed from my laptop (Surface Pro) when on the WiFi network using the same router, however, the measured speed is 3 Mbps. In addition, when I'm transferring files over the wireless network, Windows 8 File Explorer reports the transfer rate to be 3 Mbps as well. When I test the network using my phone (Samsung Focus WP7), I get a speed of 7 Mbps.
Device Manager reports that the drivers for the card on the Surface Pro (Marvell AVASTAR 350N) are up-to-date. How can I get my Surface Pro speed to match the speed of my internet connection?
Here are my Wireless Router settings:
Here are my Security settings on the router: