How to install Tomato Shibby in an ASUS RT-N66U router

Recently I flashed Tomato Shibby in an Asus RT-N66U router. To save you a pain and time here is what worked for me.

  • Download the latest Tomato Shibby firmware for the ASUS RT-N66U, file tomato-K26USB-1.28.RT-N5x-MIPSR2-140-AIO-64K.zip, from http://tomato.groov.pl/download/K26RT-N/build5x-140-MultiWAN/Asus%20RT-N...
  • Unzip the .trx file and save it somewhere in your PC
  • Plug the Ethernet cable to LAN 1 of the router and the other end to the Ethernet port on your PC.
  • Turn on the router
  • Open a web browser to 192.168.1.1 and login into the router with user admin and password admin.
  • Unplug the power cable from the router.
  • Place the router in recovery mode: hold the reset button and then plug the power back. Keep the reset button pressed all this time while you wait for the power icon to blink very slowly. It could take 10 seconds for you to see it blinking very slowly.
  • Refresh the browser page (192.168.1.1).
  • Download the ASUS firmware restoration utility from Asus website (https://www.asus.com/us/Networking/RTN66U/HelpDesk_Download/) or install it from the CD included with your router.
  • Run the ASUS firmware restoration utility and start flashing the Tomato .trx file you unzipped. Some people say it will complain that it's incompatible software. Ignore that message if you see it. I didn't see that message.
  • It will take maybe 15+ minutes for the firmware to get installed on the machine. Once the ASUS Firmware restoration is done unplug the ethernet cable from the PC. That seems to make the router reset faster. Leave the router alone until it resets itself. With the ethernet cable plugged in it seemed to take 30+ minutes for the firmware to take. With the ethernet cable unplugged it took maybe 5 minutes (I don't remember , but it was a lot faster).
  • Refresh the browser page and log into Tomato Shibby.

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