Just tried it today (I'm the guy it was directed towards originally), does nothing for me.
If you happen to get it to work, definitely post up. In the mean time I'm going back to unstable 5GHz on the latest firmware -.-
When the Xbox One is released I'll probably go back to 270 though since the only 2.4GHz device on my network is my Xbox 360 and the Xbox One will support 5GHz. Unless of course Asus/Broadcom decides to actually fix the damn driver between now and then.