reply to wifixfer
Yes, it's that slow. First things first, get your units right. 1 Megabyte (MB) = 8 Megabits (Mb). Notice the big B vs little b. I think you mean 1.0-1.4MB/s for Wi-Fi transfer speed, 500GB for your file size, and 11MBps for wired speed.
1.0-1.4MB/s is middling 802.11g speed. That's 8.0-11.2Mbps. As you know ethernet blows this away at 88Mbps. Under excellent conditions (you live in farm country and your microwave oven is off), you can get 25Mb/s. I think 54Mb/s is impossible, even in a lab. Typically speed is in the teen Mb/s, obviously less if neighbors also have 2.4GHz devices. Finally, if you are copying between two wireless devices, speeds will be further cut in half since they both share the same channel.
If you want to move 500GB of stuff, I suggest you copy it onto a drive and copy off. Even USB2 @ 25MB/s of actual throughput will be faster than 100Mbps ethernet. I estimate 100Mbps ethernet will take 12 hours (!) to move 500GB. Gigabit ethernet would be the fastest option.