We have been working on a next version of firmware for the RT-N56U. This is beta version 3.0.0.4.154 and we would like feedback about any of the improvements that you enjoyed or any of the things that were missed.
As a precaution, we recommend you save your current settings should you wish to return to the previous firmware. Before using this version, please clear your current settings.
To use this firmware, simply perform a firmware upgrade normally. We also, recommend using a wired connection to upload the firmware to your router to ensure there are no complications.