Model name
Support site link
RT-AC66U
http://www.asus.com/Networking/RTAC66U/#support_Download
RT-AC66R
http://www.asus.com/us/Networking/RTAC66R/#support_download
RT-AC56U
http://www.asus.com/Networking/RTAC56U/#support_Download
RT-AC52U
http://www.asus.com/Networking/RTAC52U/#support_Download
RT-N66U
http://www.asus.com/Networking/RTN66U/#support_Download
RT-N66R
http://www.asus.com/Networking/us/RTN66R/#support_Download
RT-N66W
RT-N65U
http://www.asus.com/Networking/RTN65U/#support_Download
RT-N65R
http://www.asus.com/us/Networking/RTN65R/#support_Download
RT-N56U
http://www.asus.com/Networking/RTN56U/#support_Download
RT-N16
http://www.asus.com/Networking/RTN16/#support_Download
RT-N15U
http://www.asus.com/Networking/RTN15U/#support_Download
RT-N14UHP
http://www.asus.com/Networking/RTN14UHP/#support_Download
RT-N14U
http://www.asus.com/Networking/RTN14U/#support_Download
RT-N10U B
http://www.asus.com/Networking/RTN10U_B/#support_Download
RT-N10U
http://www.asus.com/Networking/RTN10U/#support_Download
DSL-N66U
http://www.asus.com/Networking/DSLN66U/#support_Download
DSL-N55U Annex A
http://www.asus.com/Networking/DSLN55U_Annex_A/#support_Download
DSL-N55U Annex B
http://www.asus.com/Networking/DSLN55U_Annex_B/#support_Download
Steps :
1 . How to upgrade firmware: http://www.asus.com/support/Search-Result-Detail/8FD9F1B3-90FC-434F-BB53-F6D7A4AE010C/?keyword=router%20firmware
2. How to manually change FTP login permission into administrator:
Go to ASUSWRT>"USB Application">"Servers Center"
Click “FTP share" and then "share with account".
How to change default firmware password:
Go to ASUSWRT>"Administration">"System“, enter the new login name and password and click the "Apply” on the bottom.