Hey, I recently updated the CFE of my RT-N66U with no problem. I had to flash the stock firmware in order to do the update. Now I'm not able to go back to yours. It flashes ok, and all the lights come up; however, it doesn't respond to anything -- not even to pings from my computer set up with a static IP. What's even more odd is that the reset button doesn't work with yours flashed. Any thoughts?