Netgear WNDR3400

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'''Only version 1 is supported.''' Versions 2 & 3 are not yet supported. '''Only version 1 is supported.''' Versions 2 & 3 are not yet supported.
-'''This router only uses K26 builds.''' Use builds with '''K2.6''' in the name.+Use only '''K2.6''' builds with '''nv64k''' in the name.
-'''Read the [http://www.dd-wrt.com/phpBB2/viewtopic.php?t=51486 Peacock] announcement''' (at the top of the Broadcom Forum). ''Read it all. Carefully.'' +'''Read [http://www.dd-wrt.com/phpBB2/viewtopic.php?t=51486 Peacock] topic''' (at top of Broadcom Forum). ''Read it all. Carefully.''
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# There are two versions of this router with corresponding initial flash mini firmware. One is for [ftp://dd-wrt.com/others/eko/V24-K26/svn18946/dd-wrt.v24-18946_NEWD-2_K2.6_mini-WNDR3400.chk Netgear branded routers] and the other is for [ftp://dd-wrt.com/others/eko/V24-K26/svn18946/dd-wrt.v24-18946_NEWD-2_K2.6_mini-WNDR3400_CVNA.chk Cablevision routers]. # There are two versions of this router with corresponding initial flash mini firmware. One is for [ftp://dd-wrt.com/others/eko/V24-K26/svn18946/dd-wrt.v24-18946_NEWD-2_K2.6_mini-WNDR3400.chk Netgear branded routers] and the other is for [ftp://dd-wrt.com/others/eko/V24-K26/svn18946/dd-wrt.v24-18946_NEWD-2_K2.6_mini-WNDR3400_CVNA.chk Cablevision routers].
-# Do a factory reset (with the button on the back), and upgrade with the appropriate mini firmware above. If it complains about downgrading, just Allow.+# Do a factory reset (recessed button in the back), and upgrade with the appropriate mini firmware above. If it complains about downgrading, just Allow.
# To gain functionality of the usb port, upgrade to the [ftp://dd-wrt.com/others/eko/V24-K26/svn18946/dd-wrt.v24-18946_NEWD-2_K2.6_big-nv64k.bin big version] or the [ftp://dd-wrt.com/others/eko/V24-K26/svn18946/dd-wrt.v24-18946_NEWD-2_K2.6_mega-nv64k.bin mega version] after flashing the mini version above. # To gain functionality of the usb port, upgrade to the [ftp://dd-wrt.com/others/eko/V24-K26/svn18946/dd-wrt.v24-18946_NEWD-2_K2.6_big-nv64k.bin big version] or the [ftp://dd-wrt.com/others/eko/V24-K26/svn18946/dd-wrt.v24-18946_NEWD-2_K2.6_mega-nv64k.bin mega version] after flashing the mini version above.
-# 30-30-30 reset router+# 30-30-30 reset router (as described in [http://www.dd-wrt.com/phpBB2/viewtopic.php?t=51486 Peacock]).
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* '''Upgrading to 21676 Big will brick this router! Use [ftp://dd-wrt.com/others/eko/BrainSlayer-V24-preSP2/2013/05-27-2013-r21676/broadcom_K26/dd-wrt.v24-21676_NEWD-2_K2.6_mega-nv64k.bin 21676 Mega] instead.''' * '''Upgrading to 21676 Big will brick this router! Use [ftp://dd-wrt.com/others/eko/BrainSlayer-V24-preSP2/2013/05-27-2013-r21676/broadcom_K26/dd-wrt.v24-21676_NEWD-2_K2.6_mega-nv64k.bin 21676 Mega] instead.'''
* This is otherwise a very good build for this router. * This is otherwise a very good build for this router.
 +
 +
 +=Unbricking=
 +
 +This router can be "bricked" (rendered inoperable) by flashing the wrong firmware; by not following the correct flashing procedure (in [http://www.dd-wrt.com/phpBB2/viewtopic.php?t=51486 Peacock]); or by flashing a bad build like 21676 Big.
 +
 +If you have bricked your router, and you are willing to accept the ''risk of damaging it beyond repair'' (as warned in [http://www.dd-wrt.com/phpBB2/viewtopic.php?t=51486 Peacock]), the router can often be recovered by shorting pins as described [http://www.dd-wrt.com/phpBB2/viewtopic.php?t=153763 here].
 +
 +* Timing of the pin shorting is tricky -- power on, wait for the lights to flash, then try shorting a few times until the power light starts flashing steadily.
 +
 +* Next use tftp2 (with no password) to flash factory firmware.
 +
 +* After the flash, ''wait for at least a minute until the router boots up and the power light becomes steady green'' before resetting the router.
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# Download [http://www.downloads.netgear.com/files/GDC/WNDR3400V1/WNDR3400%20Firmware%20Version%201.0.0.50.zip official Netgear firmware] # Download [http://www.downloads.netgear.com/files/GDC/WNDR3400V1/WNDR3400%20Firmware%20Version%201.0.0.50.zip official Netgear firmware]
-# Factory Reset DD-WRT (with the button on the back)+# Reset DD-WRT (recessed button in the back)
# Enable telnet under services # Enable telnet under services
# Telnet to router (192.168.1.1) # Telnet to router (192.168.1.1)
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# tftp the official firmware to the router # tftp the official firmware to the router
#* tftp for windows [http://www.dd-wrt.com/dd-wrtv2/downloads/others/tornado/Windows-TFTP/tftp2.exe] enter router ip, leave password blank, select official firmware file #* tftp for windows [http://www.dd-wrt.com/dd-wrtv2/downloads/others/tornado/Windows-TFTP/tftp2.exe] enter router ip, leave password blank, select official firmware file
-# 30-30-30 reset router+# 30-30-30 reset router (as described in [http://www.dd-wrt.com/phpBB2/viewtopic.php?t=51486 Peacock])
[[Category:Netgear guides]] [[Category:Netgear guides]]

Revision as of 01:54, 6 February 2014

Contents

Important Notes

Only version 1 is supported. Versions 2 & 3 are not yet supported.

Use only K2.6 builds with nv64k in the name.

Read Peacock topic (at top of Broadcom Forum). Read it all. Carefully.


Hardware Specs

CPU Broadcom BCM4718A1
CPU Speed 480 MHz
Flash ROM 8 MB
RAM 64 MB
Radios 2.4 GHz and 5 GHz
WLAN Support a/b/g/n
WLAN Max Speed 300 mbps on 2.4Ghz and 300mbps on 5Ghz
Antenna Location Internal
Switch 4x 100 + 1 100 WAN
USB 1x USB 2.0


DD-WRT Installation

  1. There are two versions of this router with corresponding initial flash mini firmware. One is for Netgear branded routers and the other is for Cablevision routers.
  2. Do a factory reset (recessed button in the back), and upgrade with the appropriate mini firmware above. If it complains about downgrading, just Allow.
  3. To gain functionality of the usb port, upgrade to the big version or the mega version after flashing the mini version above.
  4. 30-30-30 reset router (as described in Peacock).


Build Notes

19342

  • This is a good build for this router.

21676

  • Upgrading to 21676 Big will brick this router! Use 21676 Mega instead.
  • This is otherwise a very good build for this router.


Unbricking

This router can be "bricked" (rendered inoperable) by flashing the wrong firmware; by not following the correct flashing procedure (in Peacock); or by flashing a bad build like 21676 Big.

If you have bricked your router, and you are willing to accept the risk of damaging it beyond repair (as warned in Peacock), the router can often be recovered by shorting pins as described here.

  • Timing of the pin shorting is tricky -- power on, wait for the lights to flash, then try shorting a few times until the power light starts flashing steadily.
  • Next use tftp2 (with no password) to flash factory firmware.
  • After the flash, wait for at least a minute until the router boots up and the power light becomes steady green before resetting the router.


Revert to Factory Firmware

  1. Download official Netgear firmware
  2. Reset DD-WRT (recessed button in the back)
  3. Enable telnet under services
  4. Telnet to router (192.168.1.1)
  5. Issue the command "mtd erase linux" & wait ~3 mins
  6. tftp the official firmware to the router
    • tftp for windows [1] enter router ip, leave password blank, select official firmware file
  7. 30-30-30 reset router (as described in Peacock)