MIMO 2x2:2 To find the hardware revision, check the device's bottom label or view the top left of the original ASUS firmware. Do not flash the initial firmware for a different revision of hardware or it may enter an infinite reboot loop.
255.255.255.0 Unplug the power connector from the back of the router. Put the router into Recovery Mode. Use the Asus Firmware Restoration Utility (or any TFTP client) to upload the DD-WRT mini-asus.trx file • DO NOT DISTURB THE ROUTER or PC FOR THE NEXT FIVE MINUTES. BE PATIENT! After the upgrade, the Utility should ask for a router reboot.
Once you have the files downloaded you should be ready to go through these instructions for loading DD-WRT on the Asus RT-N12 D1. It seems stupid to do it the way listed below BUT it?s the only way the firmware can successfully and consistently loaded.
When prompted enter the username and password. The default for both is ?admin?. This will bring you into the Asus stock firmware where we can upload a TRX file for DD-WRT. On this page Browse to the firmware you downloaded: dd-wrt.v24-14896_NEWD-2_K2.6_mini_RT-N12.trx then click on Upload.