I've noticed that I consistently get 22MBs seq read and 32MBs seq write when using wireless (AC @ ~780Mbs) but I get 66MBs read/write when using LAN. This has been the case since I got the router with multiple firmware versions including both ASUS and Merlin. I used to think it was because my network card was N @ 300Mbs but it hasn't improved at all since upgrading to AC. Any idea why there would be such a drastic difference?