I recently bought the current generation of Airport Extreme, as well as upgraded my internet to 250M optic fiber. However, I notice that there are major network speed loss when I connect the modem through the AE. Here is the result of my testing: 1. Lan directly from modem to my mbp = 200M 2. Lan from modem to router to mbp = 130M 3. Wifi (Wireless-n 5Ghz, sitting right beside the router) = 70M So to conclude, it seems there is a 70M loss when the data goes through the router, and another 60M loss when broadcast as wifi? Is there any settings that I can do to improve the network speed?