There could be a variety of things that can affect the data transfer speed. Lets start with the router. Does the 4 ports on the Linksys router Gigabit or 10/100 speed? This makes a big difference in data speeds.
Your Dell Laptop and Linksys Router, do they both run and are connected on 802.11n? e.g. if your Router WiFi only supports 802.11G, but your Dell can support 802.11N, then your data transfer will be based only on the slower G.
Also, make sure that the MyBookLive has been updated to the latest Firmware 01.02.03.
