Firmware Update: Asus RT-AC66U

Asus has released new firmware for the RT-AC66U. This router can provide clients with network access both wired and wireless. Wireless supports the unofficial 802.11ac standard, with a speed of up to 1.3Gbit/s. There are also two USB ports, so that a printer or external storage can be shared over the network. The following changes and improvements have been made in this release:


  • Allowed LAN stateful settings for DHCP6.
  • Allowed manually scan after reset.
  • Modified DMZ settings in load-balanced mode.
  • Modified virtual server settings in load balanced mode.
  • Modified some FAQ hyperlinks.
  • Modified configurations of WeTelecom WM-D300.


  • Fixed several UI issues.
  • Fixed download master install issue.
  • Fixed VPN client DNS issues.
  • Fixed open VPN manual client list setting issues.
  • Fixed PPPoE throughput issues.
  • Fixed media server related issues.
  • Fixed httpd vulnerably issues.


  • Add new Malaysia 3G ISP in USB modem.
  • Add media bridge mode.
  • Add OpenVPN, VPN Client.
  • Enable WPS under AP mode.

Version number
Release status Final
Website Asus
File size


License type Freeware