COMFAST CF-WR752AC

abgn+ac (AC1200)
1200Mbps wireless repeater
Homepage	Product page
WikiDevi.wi-cat.ru	COMFAST CF-WR752AC
3rd Party Firmware
dd-wrt	Status Unknown
OpenWrt	Supported
Tomato any flavor	Incompatible
Gargoyle	Status Unknown
Platform
Brand • Model • Rev	COMFAST CF-WR752AC v1
FCC ID	none specified
Type	access point, repeater, range extender
CPU1 Y	Qualcomm Atheros QCA9531
CPU1 Type	MIPS 24Kc
CPU1 Speed	650 MHz
Flash1 Chip	Winbond 25Q128JVSQ
Flash1 Size	16 MiB 16,777,216 B <br />131,072 Kib <br />16,384 KiB <br />128 Mib <br />0.0156 GiB <br />
RAM1 Size	128 MiB 134,217,728 B <br />1,048,576 Kib <br />131,072 KiB <br />1,024 Mib <br />0.125 GiB <br />
RAM1 Chip	Winbond W971GG6SB-25
ETH chip1	Qualcomm Atheros QCA9531
Ethernet Port Count	1-100MbE-LAN
Wired Standard	IEEE 802.3i/3u
802dot11 OUI: 40:A5:EF (4 E, 3 W) Ethernet OUI: 40:A5:EF (4 E, 3 W)
Stock bootloader	U-Boot
Expansion IF types	none specified
Power	110-220 VAC ~ 50/60 Hz, 0.05 A
Connector type	AC (direct)
Serial Port (UART)	yes, 3.3V TTL, (115200 8N1)
Other
Default SSID: COMFAST XXXX 2G , COMFAST XXXX 5G Default IP address: 192.168.10.1 the IP 192.168.10.1 is used by 136 additional devices of which 6 are COMFAST devices Default login user: blank Default login password: admin blank:admin credentials used by 292 additional devices of which 0 are COMFAST devices
3rd Party Firmware Support	OpenWrt • (List | Dev | DLs)
Retail
ASIN	B07GCJSX48
Country of manuf	China
Radio 1
Chip1	Qualcomm Atheros QCA9531
Wireless interface OUI	40:A5:EF
Antenna Connector Type	soldered
MIMO status	2x2:2
Wireless Standard	IEEE 802.11b/g/n
802.11n	up to 300 Mbps
802.11g	up to 54 Mbps
802.11b	up to 11 Mbps
WiFi Operating Frequency	2.4 GHz
Radio 2
Chip1	Qualcomm Atheros QCA9886
Wireless interface OUI	40:A5:EF
Antenna Connector Type	soldered
MIMO status	2x2:2
Wireless Standard	IEEE 802.11a/n/ac
802.11ac	up to 867 Mbps
802.11n	up to 300 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 COMFAST devices with specifications, see COMFAST.

• 300 Mbps - 2SS 2.4GHz 802.11n (40MHz chan.),

• 867 Mbps - 2SS 5GHz 802.11ac (80MHz chan.) = AC1200 class

Overview

CF-E3752AC is a dual band, dual radio wireless AP/repeater from COMFAST with a 10/100Mbps Ethernet interface

OUI: 40:A5:EF (Shenzen Four Seas Global Link Network Technology Co., LTD)

Flashing

Flashing OpenWrt

On the OpenWrt ToH (techdata entry)

Target: ath79
Subtarget: generic
Package architecture: mips_24kc
Supported Since Commit
Support started version: 21.02.0
Current supported version: 25.12.5

WLAN Hardware: Qualcomm Atheros QCA9531, Qualcomm Atheros QCA9886
Installation method(s):
Sysupgrade, U-Boot web recovery, see git-commit
Recovery method(s):
U-Boot web recovery

git • >>

ath79: add support for Comfast CF-WR752AC v1 Specifications: - Qualcomm QCA9531 + QCA9886 - dual band, antenna 2*3dBi - Output power 50mW (17dBm) - 1x 10/100 Mbps LAN RJ45 - 128 MB RAM / 16 MB FLASH (w25q128) - 3 LEDs (red/green/blue) incorporated in "color wheel reset switch" - UART 115200 8N1 Flashing instructions: The U-boot bootloader contains a recovery HTTP server to upload the firmware. Push the reset button while powering the device on and keep it pressed for ~10 seconds. The device's LEDs will blink several times and the recovery page will be at http://192.168.1.1; use it to upload the sysupgrade image. Alternatively, the original firmware is based on OpenWrt so a sysupgrade image can be installed via the stock web GUI. Settings from the original firmware will be saved and restored on the new one, so a factory reset will be needed. To do so, once the new firmware is flashed, enter into failsafe mode by pressing the reset button several times during the boot process, until it starts flashing. Once in failsafe mode, perform a factory reset as usual. LED-Info: The LEDs on the Comfast stock fw have a very proprietary behaviour, corresponding to the user selected working mode (AP, ROUTER or REPEATER). In the first two cases, only blue is used for status and LAN signaling. When using the latter, blue is always off (except for sysupgrade), either red signals bad rssi on master-link, or green good. Since the default working mode of OpenWrt resembles that of a router/AP, the default behavior is implemented accordingly. MAC addresses (art partition): location address (example) use in vendor firmware 0x0 xx:xx:xx:xx:xc:f8 -> eth0 0x6 xx:xx:xx:xx:xc:fa -> wlan5g (+2) 0x1002 xx:xx:xx:xx:xc:f9 -> not used 0x5006 xx:xx:xx:xx:xc:fb -> not used --- xx:xx:xx:xx:xd:02 -> wlan2g (+10) The same strange situation has already been observed and documented for COMFAST CF-E560AC. Signed-off-by: Roman Hampel Co-developed-by: Joao Albuquerque Signed-off-by: Joao Albuquerque [adjust and extend commit message, rebase, minor DTS adjustments, add correct MAC address for wmac, change RSSI LED names and behavior] Signed-off-by: Adrian Schmutzler