I disagree. I have seen people saying the listed connection rate is dynamic, changed based on use. On top of that, some people saw rates as low as 1Mbps listed. I feel if it was truly bottle necking the connection at those speeds, we would be hearing ALOT more on it. I posted a thread on Xbox forums..not a single hit, so something doesn't add up. So the only thing I wanted to test was if the Xbox could download something faster then 11Mbps even if the rate said 11Mbps. If so, then it would make the problem a status reporting glitch, and not a throughput problem.
But yea, if you have some way to test it based on actually transfer rates, and not connections rates, please post your data in detail.