I just purchased an N56u to replace a N53 because I wanted the added USB ports. However, I am experiencing slower upload speeds when connected by ethernet. I am consistently getting 20-25mbps on the N53 but only 15-17 with the N56. The N53 is running the stock fw ver 1.1.1.56 and the N56 is upgraded to fw ver 3.0.0.4.342. I upgraded the fw on the N56 when I first set it up, so I don't have any comparison to the fw it came with. I have tested the N56 with the Qos off and on, with it set to 35mbps down and 30mbps up. Do you have any ideas of why this would be? Should I change the fw on the N56, and can it be downgraded to a previous version? BTW, my download speed are pegged at 32mbps on both routers. Thanks.