Got my new review unit in for testing and setup it up tonight. Look what I see right out of the box with 2.4GHz. Yep. Just like my old WRT1900AC. Still trying to do AC mode via 2.4GHz. But unlike the previous WRT1900AC. You could set it to b/g/n to get around this bug. Not happening with this new one. They don't give you that option. Ah jump the gun. I do see a gn only mode.