AC66U unreachable after fw flash

[nejo]

Hi,

a couple of weeks ago I got an AC66U, I ran stock for a little while and then decided to flash to Merlin. Had some issues with wifi running Merlin and today I thought I'd try DD-WRT. I did and it couldn't connect to the internet, so figured I'd go back to stock.

But before I did that I thought I'd try Tomato, and after installing Tomato, I can't reach my router. It doesn't show up when scanning for networks, and the LEDs on the router indicating 2.4 and 5GHz are turned off, and the rest of the LEDs flash or stay lit.

Any idea on what to do? Can I get stock fw in via USB? or do a hard reset or something?

Any advice appreciated.

 

[nejo]

I found a guide in another thread by RMerlin and followed it. It worked, and my AC66U is now running stock firmware.

Here's the whole recommended method for recovery that I use myself in case of problem:

To reset the router settings:

1) Turn the router off
2) Unplug modem and every computers from ther outer except for one single computer
3) Press the WPS button, and keep it pressed
4) Turn the router on
5) Wait 10 seconds, then release the WPS button
6) Wait about 10 seconds, then turn it off


For the recovery flash:

1) Start the Firmware Recovery tool on your computer. Select the file, then click on Upload. It will start looking for the router.
2) Press the reset button, and while it's pressed turn the router back on
3) Give it about 20 seconds - the Recovery tool should then detect the router, and start uploading the firmware.

The reason I like to start the upload process BEFORE turning the router back on is that sometimes, you might have a timing issue where you start the upload too late. So long you turn the router on within 5-10 seconds after clicking on "Upload" you should be fine.

Although I had to assign an IP from my computer, the router wouldn't assign one.