ASUS RP-AC66

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abgn+ac (AC1750)
Wireless-AC1750 Dual-Band Range Extender/Repeater
Wikipedia Asus routers
3rd Party Firmware
dd-wrt Status Unknown
OpenWrt Supported
Tomato any flavor Incompatible
Gargoyle Status Unknown
Platform
Brand • Model • Rev ASUS RP-AC66
FCC ID none specified
Type range extender
CPU1 checkY Qualcomm Atheros QCA9563
CPU1 Type MIPS 74Kc
CPU1 Speed 775 MHz
Flash1 Chip Brand? Model?
Flash1 Size 16 MiB 16,777,216 B <br />131,072 Kib <br />16,384 KiB <br />128 Mib <br />0.0156 GiB <br /> (SPI NOR)
RAM1 Size 64 MiB 67,108,864 B <br />524,288 Kib <br />65,536 KiB <br />512 Mib <br />0.0625 GiB <br /> (DDR2)
RAM1 Chip Brand? Model?
ETH chip1 Qualcomm Atheros QCA9563
Ethernet Port Count 1-1GbE-LAN
Wired Standard IEEE 802.3i/3u/3ab

802dot11 OUI: none specified

Stock bootloader U-Boot
Expansion IF types none specified
Power 110-240 VAC ~ 50/60 Hz, ? A
Connector type AC (direct)
Serial Port (UART) yes, 3.3V TTL, (115200 8N1)
Other
3rd Party Firmware Support OpenWrt • (List | Dev | DLs)
Radio 1
Chip1 Qualcomm Atheros QCA9563
Wireless interface OUI none specified
Antenna Connector Type none specified
MIMO status 3x3:3
Wireless Standard IEEE 802.11b/g/n
802.11n up to 450 Mbps
802.11g up to 54 Mbps
802.11b up to 11 Mbps
WiFi Operating Frequency 2.4 GHz
Radio 2
Chip1 Qualcomm Atheros QCA9880
Wireless interface OUI none specified
Antenna Connector Type none specified
MIMO status 3x3:3
Wireless Standard IEEE 802.11a/n/ac
802.11ac up to 1300 Mbps
802.11n up to 450 Mbps
802.11a up to 54 Mbps
WiFi Operating Frequency 5 GHz

For a list of all currently documented Qualcomm Atheros (QCA) chipsets with specifications, see Qualcomm Atheros.

For a list of all currently documented ASUS devices with specifications, see ASUS.

• 450 Mbps - 3SS 2.4GHz 802.11n (40MHz chan.),
• 1300 Mbps - 3SS 5GHz 802.11ac (80MHz chan.) = AC1750 class

Flashing

Flashing OpenWrt

Target: ath79
Subtarget: generic
Package architecture: mips_24kc
Supported Since Commit
Support started version: 22.03.0
Current supported version: 25.12.0
LAN Comment: built-in
WLAN Comment: Qualcomm Atheros QCA9563, Qualcomm Atheros QCA9880
Installation method(s):
Asus Firmware Restoration tool, U-Boot TFTP + serial recovery
Recovery method(s):
Asus Firmware Restoration tool, U-Boot TFTP + serial recovery
git • >>
ath79: add support for ASUS RP-AC66
Asus RP-AC66 Repeater

Hardware specifications:
Board: AP152
SoC: QCA9563
DRAM: 64MB DDR2
Flash: 25l128 16MB SPI-NOR
LAN/WAN: 1x1000M QCA8033
WiFi 5GHz: QCA9880
Clocks: CPU:775.000MHz, DDR:650.000MHz, AHB:258.333MHz, Ref:25.000MHz

MAC addresses as verified by OEM firmware:
use            address   source
Lan/Wan   *:24         art 0x1002 (label)
2G             *:24         art 0x1002
5G             *:26         art 0x5006

Installation:

Asus windows recovery tool:
 - install the Asus firmware restoration utility
 - unplug the router, hold the reset button while powering it on
 - release when the power LED flashes slowly
 - specify a static IP on your computer:
     IP address: 192.168.1.75
     Subnet mask 255.255.255.0
 - Start the Asus firmware restoration utility, specify the factory image
    and press upload
 - Do not power off the device after OpenWrt has booted until the LED flashing.

TFTP Recovery method:
 - set computer to a static ip, 192.168.1.75
 - connect computer to the LAN 1 port of the router
 - hold the reset button while powering on the router for a few seconds
 - send firmware image using a tftp client; i.e from linux:
 $ tftp
 tftp> binary
 tftp> connect 192.168.1.1
 tftp> put factory.bin
 tftp> quit