Try a hard reset on the router and see if it downloads it on it's own. Locate the reset button on the backside of your unit with a sharp object, e.g. a paperclip or pencil, press and hold the reset button for 5s or until the power led starts flashing...
There is a beta firmware version you can download in this thread somewhere, it worked wonders for me. You can also follow the various instructions for loading the latest firmware and see if that works too. Either way, they have already fixed this iss...
Same, I used the beta and been stable all day so far, but who knows where the ****** beta came from or if we will have a legit one from Asus any time soon. I dont even know what was in the code of the beta, it was just from some rando's storage on th...