This is a long post, I apologize. I have a 10/100 switch with a Sony Blu-Ray player an Apple TV a Samsung LCD TV an iTunes Server and a MacBook Pro all connected via ethernet. I have an Airport Extreme distributing my WiFi and powering this switch. I decided to download the Dev Preview of Window's 8 and run it on my MacBook Pro in Bootcamp just to see how I liked it. I noted my MacBook Pro was downloading at about 140 to 200 kb per second. I called my internet provider and they ran me thru a speed test and I was getting about 6 megabits per second download. My Airport Extreme and my MacBook Pro are both gigabit ethernet so I decided to connect my MacBook Pro to an open port on my Airport Extreme and my download sped up to about 700 kb per second. I also have a Window's 7 machine and I was able to get 500 to 600 kb download speeds running thru this same switch. I have honestly researched this the best I could and I seen post about issues with OS X Lion and WiFi, but I can't find anything about Ethernet connections. I forgot to mention my MacBook Pro is on 10.7.1. I am just trying to figure out why my MacBook Pro slows down so much when connected via ethernet running thru an unmanaged switch. I did swap out switches and got the same basic result. My knowledge of networks and such is very limited. Any guidance would be greatly appreciated.