Buffalo WZR-D1800H

Buffalo WZR-D1800H
Availability: common

Manuf (OEM/ODM): Arcadyan WA9116B AC33

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)

Series: AC1750

Amazon image

ASIN
B0084JFLSK (, On Amazon, On CCC)

Type: wireless router

FCC ID: FDI-09101695-0
IC ID: 6102A-041
PCB ID: 141911620002J

Power: 12 VDC, 3 A
Connector type: barrel

CPU1: Broadcom BCM4706
FLA1: 128 MiB134,217,728 B 1,048,576 Kib 131,072 KiB 1,024 Mib 0.125 GiB  (Samsung K9F1G08U0D-SCB0)
RAM1: 128 MiB134,217,728 B 1,048,576 Kib 131,072 KiB 1,024 Mib 0.125 GiB  (EtronTech EM68B16CWQD-25H × 2)

Expansion IFs: Mini PCIe, USB 2.0
Mini PCIe slots: 2
USB ports: 1
Serial: yes, 10-pin header, unpopulated, (115200,8,N,1)

WI1 module: Arcadyan WN8833B-GN
WI1 module IF: Mini PCIe
WI1 chip1: Broadcom BCM4331
WI1 802dot11 protocols: bgn
WI1 MIMO config: 3x3:3
WI1 antenna connector: U.FL
WI2 module: Arcadyan WN8833B-AC
WI2 module IF: Mini PCIe (oversized)
WI2 chip1: Broadcom BCM4360
WI2 802dot11 protocols: an+ac
WI2 MIMO config: 3x3:3
WI2 antenna connector: U.FL

ETH chip1: Broadcom BCM4706
Switch: Broadcom BCM53125
LAN speed: 1G
LAN ports: 4
WAN speed: 1G
WAN ports: 1

abgn+ac

Stock bootloader: CFE

Stock FW OS: Linux

TPFirmware supported: DD-WRT • (List), DD-WRT (Kong-AC) • (List), FreshTomato • (List | DLs)

Default SSID: BUFFALO-XXXXXX_A (2 addl. devices)
, BUFFALO-XXXXXX_G (2 addl. devices)
Default IP address: 192.168.11.1
the IP 192.168.11.1 is used by 33 additional devices
of which 27 are Buffalo devices
Default login user: admin
Default login password: password
admin:password credentials used by 421 additional devices
of which 14 are Buffalo devices

802dot11 OUI: 10:6F:3F (6 E, 8 W)
Ethernet OUI: 10:6F:3F (6 E, 8 W)

	FCC ID
Arcadyan WN8833B-AC	FDI-09101695-0 K7SF9K1118V1
Arcadyan WN8833B-GN	FDI-09101695-0
Buffalo WLI-H4-D1300	FDI-09101695-0

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

AirStation AC1300/N900 Gigabit Dual Band Wireless Router

Product page • Datasheet

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

On the OpenWrt wiki

Per the lspci dump, the BCM4360 has the PCI ID of 14e4:43a2

Reviews

Reviewed on C|Net
Review on SmallNetBuilder, part 1
Review on SmallNetBuilder, part 2 (10:6F:3F OUI)

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

On the DD-WRT forums, and another post with the initial test build

Not bundled with DD-WRT, but work has been completed to support,

see this thread for the latest test build.

News

Buffalo showcases cutting-edge wireless technology

Flashing

NOTE: During configuration or flashing a device, the only things that should be hooked to the device is the computer and power.

Flashing DD-WRT

WARNING: This is highly beta DD-WRT version. This image may brick your router. Make sure you have serial cable to debrick router!!

nvram shows as 256 KB with DD-WRT installed

.bin files are for initial flash, .trx files are for upgrading.

Do a Hard Reset
Upload DD-WRT via GUI
Do a Hard Reset

Upgrading

Upgrading DD-WRT

trx files are for upgrading, bin files are for initial flash.

Do a Hard Reset
Upload DD-WRT via GUI
Do a Hard Reset

Reverting

Reverting from DD-WRT to OEM firmware

Do a Hard Reset
Upload Buffalo Firmware via GUI
Do a Hard Reset

JTAG-Serial Info

Good info on opening this unit Will post here ASAP
De-bricking a Buffalo wifi router

Serial

Serial Pinouts

 1 o VCC
 2 o GND
 3 o RX
 4 o TX

USB Info

DD-WRT USB

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 is included in most the newer builds of dd-wrt.

Check the features chart to be sure.

Images

Buffalo's Images

angled
front
front on side
back
side
angled2

FCCID FDI-09101695-0

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Notes

jffs Issue in DD-WRT

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