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Ironic Sodium

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Host ID: 358

episodes: 1

hpr2332 :: Installing DD-WRT on ASUS RT-N66U

Released on 2017-07-11 under a CC-BY-SA license.


  • This worked for me, but it’s no guarantee it’ll work for you
  • It’s been a couple weeks and I’m doing this from memory with the help of the resources I used, so I may have missed or misremembered a step
  • Read the relevant documentation for yourself
  • DO NOT use the router database to determine the firmware version to use

Resetting and Clearing

  • Recovery Mode (use Reset Button):
    • With router unplugged, press reset button
    • Plug in power
    • Hold reset button for ~10 seconds until the power LED is blinking slowly
  • Clear the NVRAM (use WPS Button):
    • With router unplugged, press WPS button
    • Plug in power
    • Hold WPS button for ~10 seconds
    • Note: NVRAM is where the settings for the router are stored
  • 30-30-30 Reset
    • Push reset button with the router powered on for 30 seconds
    • Pull the power cord for 30 seconds while holding the reset button
    • Plug the power cord in for 30 seconds, while holding the reset button

Upload via Web GUI

  • Tried using the Web GUI method, but ASUS firmware checks to see if it’s an official version (i.e. signed by ASUS), and will only install it if it is
  • DD-WRT isn’t an official version, obviously, but not all is lost, uploading via recovery utility works

Upload via Recovery Utility

  • Download router firmware: dd-wrt.v24-26138_NEWD-2_K3.x-big-RT-N6UU.trx
    • big version includes more tools than mega version
  • Make the following network config information on the computer you’ll upload the firmware from:
    • IP =
    • Subnet =
    • Default Gateway =
  • Perform 30-30-30 Reset
  • Perform Clear NVRAM
  • Perform Recovery Mode
  • Navigate to and follow screen directions to upload DD-WRT firmware
  • It may take up to 10 minutes to reboot (don’t think it took that long, but I waited that long)
  • Perform Recovery Mode
  • Navigate to and select Reset NVRAM
  • Navigate to, and then select reboot and wait ~10 minutes
  • Perform 30-30-30 Reset
  • Navigating to should now bring you to your new DD-WRT installation
    • Remember to secure it
  • Note: installing mini version (referenced in online directions) isn’t necessary prior to installing the big/mega version


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