I have an Asus RT-N16 with Tomato K26 R2. I thought maybe this firmware would make Greenfield mode work properly, but I still have this issue where Greenfield mode enabled absolutely locks/limits/caps my download speed to 3mbps. I am using an Atheros AR9287 WLAN device on a brand new laptop. Perhaps, I am not understanding the implications of Greenfield technically, but why could this be happening?
It seems to play well when I use GF-BRCM mode, but I'm not really sure what this mode is and how it differs from Greenfield.