Buffalo WZR-D1800H

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Buffalo WZR-D1800HOpening this unit
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abgn+ac
AirStation AC1300/N900 Gigabit Dual Band Wireless Router
Buffalo WZR-D1800H.jpg
Homepage
Support
Wikipedia
WikiDevi.wi-cat.ru
3rd Party Firmware
dd-wrt
OpenWrt
Status Unknown
Tomato any flavor
Gargoyle
Status Unknown
Platform
BrandModelRev
Buffalo WZR-D1800H
FCC ID
IC ID
Board ID
141911620002J
Type
wireless router
Wireless class
AC1750
CPU1
CPU1 Type
MIPS R2
CPU1 Speed
600 MHz
Flash1 Chip
Samsung K9F1G08U0D-SCB0
Flash1 Size
128 MiB134,217,728 B <br />1,048,576 Kib <br />131,072 KiB <br />1,024 Mib <br />0.125 GiB <br />
RAM1 Size
128 MiB134,217,728 B <br />1,048,576 Kib <br />131,072 KiB <br />1,024 Mib <br />0.125 GiB <br />
RAM1 Chip
EtronTech EM68B16CWQD-25H x 2
nvram Size
64K
ETH chip1
Switch
Broadcom BCM53125
Ethernet Port Count
1-1GbE-WAN
4-1GbE-LAN

802dot11 OUI: 10:6F:3F (4 E, 6 W)
Ethernet OUI: 10:6F:3F (4 E, 6 W)

Stock bootloader
CFE
Stock FW OS
Linux
Expansion IF types
Mini PCIe, USB 2.0
Mini PCIe slots
2
USB ports
1
USB Hub Compatible
Untested
Power
12 VDC, 3 A
Connector type
barrel
Serial Port (UART)
yes, 10-pin header, unpopulated, J9, (115200 8N1)
Other
Default IP address
192.168.11.1
Default login user
admin
Default login password
password
Default SSID
BUFFALO-XXXXXX_A
BUFFALO-XXXXXX_G
Manuf/OEM/ODM
Arcadyan WA9116B AC33
3rd Party Firmware Support
Retail
Availability common
FCC approval date 20 April 2012
(Est.) release date 14 May 2012
(Est.) initial retail price
(in USD):

$180
UPC 747464125138
(UPC DB, On eBay)
ASIN B0084JFLSK Flag of the United States.svg
Radio 1
Radio1 module
Radio1 module IF
Mini PCIe (oversized)
Chip1
Broadcom BCM4360
Wireless interface OUI
10:6F:3F
Antenna Connector Type
U.FL
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
Radio2 module
Radio2 module IF
Mini PCIe (oversized)
Chip1
Broadcom BCM4360
Wireless interface OUI
10:6F:3F
Antenna Connector Type
U.FL
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
 FCC ID
Arcadyan WN8833B-ACFDI-09101695-0
K7SF9K1118V1
Arcadyan WN8833B-GNFDI-09101695-0
Buffalo WLI-H4-D1300FDI-09101695-0

For a list of all currently documented Broadcom chipsets with specifications, see Broadcom.

Overview[edit]

"P/N: 141911620002J R0A" is silkscreened on the main board.
"P/N: 141883320000J R0A" is silkscreened on the 2.4 GHz wireless module.

This device is Broadcom based. OEM Arcadyan.

The BCM4331 wireless module uses 3x Skyworks (SiGe) SE2594L

(Dual Band 802.11a/b/g/n Wireless LAN Front End)

The BCM4360 wireless module uses 3x Skyworks (SiGe) SE5003L

(5GHz, 23dBm Power Amp w/ Power Detector)
Per the lspci dump, the BCM4360 has the PCI ID of 14e4:43a2

Links of Interest[edit]

Reviews[edit]

The Arcadyan model of the device may be WG9116AAC-J6.
"P/N: 141911620002J R01" is silkscreened on the main board.
"P/N: 141883320008J" is silkscreened on the 5GHz wireless module.
The silkscreened manuf. date code is 1215 (third week of April).
Default SSIDs appear to be BUFFALO-XXXXXX_A and BUFFALO-XXXXXX_G
(upper case letters, LAN MAC is probably the MAC used for both).

Forum threads[edit]

Not bundled with DD-WRT, but work has been completed to support,
see this thread for the latest test build.

News[edit]

Flashing[edit]

Flashing dd-wrt[edit]

nvram shows as 256 KB with DD-WRT installed

  • .bin files are for initial flash, .trx files are for upgrading.
  1. Do a Hard Reset
  2. Upload DD-WRT via GUI
  3. Do a Hard Reset

Upgrading[edit]

Upgrading DD-WRT[edit]

  1. Do a Hard Reset
  2. Upload DD-WRT via GUI
  3. Do a Hard Reset

Reverting[edit]

Reverting from DD-WRT to OEM firmware[edit]

  1. Do a Hard Reset
  2. Upload Buffalo Firmware via GUI
  3. Do a Hard Reset

JTAG-Serial Info[edit]

Magnetron1.1's opening this unit


See details here

JTAG[edit]

Serial[edit]

Serial Pinouts[edit]

J9
 1 o VCC
 2 o GND
 3 o RX
 4 o TX
Hyper terminal Setup in Windows XP
In Windows XP, Click Start Button - All Programs - Accessories - 
   Communication - HyperTerminal
Enter a name for the connection, Click ok
Choose com port you adapter is plugged into, Click ok
Set:
 Bits per second = 115200
 Data Bits = 8
 Parity = none
 Stop bits = 1
 Flow control = none
Click ok
Click File - Save As, and select a place to save it to so you 
             don't have to enter the settings again.
Putty Setup in Windows XP
After installing putty, run it
 Serial line = The COM port your using for serial (ie. COM3)
 Speed = 115200
Click on Serial under Connection
 Serial line to connect to = same as above (Serial line)
 Speed (baud) = 115200
 Data bits = 8
 Stop bits = 1
 Parity = none
 Flow control = none
Click Session
 Enter a name for your connection under saved sessions
Click Save
Click Open

Serial Recovery[edit]

USB Info[edit]

DD-WRT USB[edit]

  • The USB port is where you can connect an external USB hard drive or flash drive. Which can do a multitude of things. You can use in as a NAS, storage for a FTP server, use Optware to run external programs like torrent software, samba for sharing files to network, share a USB printer with network... The list of possibilities is long, it just takes a little research.
  • ProFTPd, samba, dlna, raid support is included in most the newer builds of dd-wrt. Check the features chart to be sure.

vlan Info[edit]

Pictures[edit]

Buffalo's Images
FCCID FDI-09101695-0
WZR-D1800H

WLI-H4-D1300

Notes[edit]

jffs Issue in DD-WRT[edit]

This problem is caused by the firmware encountering an unmarked bad block during an

erase operation while attempting to setup a JFFS2 filesystem on device /dev/mtd/4.

Most people will probably never experience this problem. The AC66U, the D1800H, and

the Buffalo WLI-H4-D1300 Media Bridge use the same Samsung flash memory chip.

In case, 4 of 5 D1800H's had the problem but D1300 didn't. Neither of AC66U's had the problem.

One person on one of the AC66U threads reported having the problem; here's a link to his post.

If you have the problem, you will not be able to create or copy directories and files to /jffs.

Here are some example error messages: (this list was shortened to save space - it can go on for several pages)
root@WZR-D1800HRT2:~# dmesg|grep jffs
jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x05ee0020: 0xe952 instead
jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x05ee0024: 0x0e6d instead
jffs2: Further such events for this erase block will not be printed
jffs2: Old JFFS2 bitmask found at 0x05efc7fc
jffs2: You cannot use older JFFS2 filesystems with newer kernels
jffs2: Cowardly refusing to erase blocks on filesystem with no valid JFFS2 nodes
jffs2: empty_blocks 379, bad_blocks 1, c->nr_blocks 760

Also the Status -> Router webpage will show that JFFS2 has no free space.

To fix this problem try the following at a command line prompt:

flash_erase -j /dev/mtd/4 0 0 && reboot

This command erases and marks bad any bad blocks encountered so that they can be "skipped"

and formats the partition to JFFS2 specifications.

I believe the firmware uses the mtd erase command which seems to fail at handling bad blocks.

The flash_erase command needs to be run only once.

- Magnetron1.1

Hardware Modification[edit]

See also[edit]