Netgear R6400 v2 and R6700v3 Install Guide

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egc
DD-WRT Guru


Joined: 18 Mar 2014
Posts: 3363
Location: Netherlands

PostPosted: Wed Aug 22, 2018 14:26    Post subject: Netgear R6400 v2 and R6700v3 Install Guide Reply with quote
Attached is the "official" DDWRT install guide for the Netgear R6400v2 which can also be used for the R6700v3 as that is identical, albeit with a different boardid and detachable antennas.

This is a work in progress so your remarks, contributions and amendments are more than welcome, post them in this thread or PM me (use the PM button below, visible if you are logged in).

The Netgear R6400v2 is the successor of the R6400v1, software is however not entirely compatible, although the routers share a lot of components.

So take note of the version:
The v1 has simply "Model: R6400" on its label on the underside of the router and the v2 has: "Model: R6400v2".

Netgear is using different boardid's for the R6400v2, which makes it difficult to support and leds to misidentification, we are very interested in your boardid, and when and where (geographical region) you bought it. How to obtain your boardid is describe in this guide.

Thanks to Kong, who was able to sort out the boardid mess of the R6400v2, we now have proper support for the R6400v2 with different boardid's and for the R6700v3, which is identical to the R6400v2 albeit with a different boardid and detachable antennas.

Kong's builds also add calibration data reading and will set the default wifi pass to the one printed on the box.

For the R6400v2 use builds after Septembre 1st 2018, with buildnumber 36820 or later.

For the R6700v3 use builds after Septembre 3rd 2018, with buildnumber 36840 or later.

Builds are experimental, use at your own risk.
Debricking instructions are avalable in the second post of this thread and might be needed, although many users report good succes provided you follow the instructions of this guide.

Files for going back to stock or for use with TFTP are also attached for R6400v2 (boardid's U12H332T20 and U12H332T30) in this post and for R6700v3 (boardid U12H332T77) in the third post of this thread.

Post in this thread or PM me (use the PM button below, visible if you are logged in).

Recent reports indicate that Netgear is checking the actual build number and does not let you downgrade.
As DDWRT has no build numbers set into the files, it is possible that you can not upgrade to DDWRT.
If you run into this situation you can contact me for a possible solution or modify the header of the .chk file to include a higher build number.
see: https://bugs.openwrt.org/index.php?do=details&task_id=2009.
https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=318557

Note: you can only see and download the attached documents if you are logged in



Netgear R6400v2 (R6700v3) Guide v 1.06.doc
 Description:

Download
 Filename:  Netgear R6400v2 (R6700v3) Guide v 1.06.doc
 Filesize:  66.5 KB
 Downloaded:  2688 Time(s)


R6400v2-V1.0.2.52_U12H332T20_NETGEAR.chk
 Description:
This file can be used to go back to stock for R6400v2 with U12H332T20_NETGEAR boardid.
Also needed when using TFTP.
Follow the guide

Download
 Filename:  R6400v2-V1.0.2.52_U12H332T20_NETGEAR.chk
 Filesize:  30.04 MB
 Downloaded:  1652 Time(s)


R6400v2-V1.0.2.52_U12H332T30_NETGEAR.chk
 Description:
This file can be used to go back to stock for R6400v2 with U12H332T30_NETGEAR boardid.
Also needed when using TFTP.
Follow the guide

Download
 Filename:  R6400v2-V1.0.2.52_U12H332T30_NETGEAR.chk
 Filesize:  30.04 MB
 Downloaded:  1369 Time(s)


_________________
Routers: Netgear R6400v1, Netgear R6400v2, Linksys EA6900 (XvortexCFE), Linksys E2000 (converted WRT320N), WRT54GS v1.
Install guide Linksys EA6900: http://www.dd-wrt.com/phpBB2/viewtopic.php?t=291230
Simple PBR (Policy Based Routing) script: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=318662
Install guide R6400v2:http://forum.dd-wrt.com/phpBB2/viewtopic.php?t=316399
OpenVPN server setup guide:
https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=318795


Last edited by egc on Tue May 14, 2019 7:46; edited 55 times in total
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@m0eb@
DD-WRT User


Joined: 26 Dec 2015
Posts: 261

PostPosted: Fri Aug 24, 2018 15:51    Post subject: Router Netgear R6400 v2: Retrieving from Bricked Condition. Reply with quote
I have removed the earlier content on de-bricking the R6400 and added a more comprehensive guide here. Hence the major edit.

This forum has been a great source of learning for me. It started with solving my using the E900 router to transmit two channels - one on VPN and the other open. The need to search for stuff has the associated plus that we get to know of many possibilities that exist. However, the only time when I found this searching to be a pain was when my new R6400 router got bricked. dd-wrt is a hobby - repairing bricked routers is not !!

I would find some solution somewhere ... spend an hour understanding and then trying and re-trying and failing. Thanks to some good samaritans, my electronics background and associated curiousness and the notes that I made while learning ... I could prepare this guide to unbrick the R6400.

The R6400 is a great router - dd-wrt has released a few stable versions !! But, I am sure there will be other R6400 users who have bricked their pieces and are looking for solutions. The objective is to help them find relevant information in one place + help the absolute dummy how to ping.

And did I mention How I bricked my router?
Well - this same site suggested a dd-wrt build and listed the router in the list of compatible devices. So I purchased the router - then went ahead with loading dd-wrt. It loaded - but with many issues. I tried to revert to the earlier build (from the officially supported page)... and thus did my router crash !!

I realised that this is a WIP forum. Always Work in Progress. Well - so is this guide. Please add a comment if you have some suggestions for the next version.


NMRPFLASH: The section on NMRP flash applies to most Netgear routers. In fact, I discovered that this can also be used to load dd-wrt on the router (not recommended... please use egc's guide in the first post). This tool is also very handy when you have loaded a BS build and need to revert back to Kong's ... when you are unable to do a browser upgrade and ddup utility is nowhere to be found. Applies to selected Netgear Routers ONLY.



Guide to unbricking v1.33 (eg Netgear R6400).pdf
 Description:
Version 1.33. All links corrected. NMRPFLASH section updated to be able to revert back to Kong's builds

Download
 Filename:  Guide to unbricking v1.33 (eg Netgear R6400).pdf
 Filesize:  1.13 MB
 Downloaded:  1711 Time(s)


_________________
PROFESSIONAL STUDENT
my.Mistakes my.Learning ... provided I have the patience & persistence to learn


Last edited by @m0eb@ on Tue Oct 16, 2018 3:03; edited 15 times in total
egc
DD-WRT Guru


Joined: 18 Mar 2014
Posts: 3363
Location: Netherlands

PostPosted: Sun Aug 26, 2018 12:45    Post subject: Reply with quote
File upload


R6700v3-V1.0.2.52_U12H332T77_NETGEAR.chk
 Description:
For R6700v3 for going back to stock and for use with TFTP

Download
 Filename:  R6700v3-V1.0.2.52_U12H332T77_NETGEAR.chk
 Filesize:  30.04 MB
 Downloaded:  618 Time(s)


_________________
Routers: Netgear R6400v1, Netgear R6400v2, Linksys EA6900 (XvortexCFE), Linksys E2000 (converted WRT320N), WRT54GS v1.
Install guide Linksys EA6900: http://www.dd-wrt.com/phpBB2/viewtopic.php?t=291230
Simple PBR (Policy Based Routing) script: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=318662
Install guide R6400v2:http://forum.dd-wrt.com/phpBB2/viewtopic.php?t=316399
OpenVPN server setup guide:
https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=318795


Last edited by egc on Tue Sep 04, 2018 10:32; edited 1 time in total
@m0eb@
DD-WRT User


Joined: 26 Dec 2015
Posts: 261

PostPosted: Thu Aug 30, 2018 14:11    Post subject: Reply with quote
egc wrote:
I have attached a first version of instructions for the R6400v2 in the first post of this thread. It needs some serious editing and polishing, it is just to get an idea.

This as we anticipate (hope) that DDWRT will have full support (both builds from Kong and BS) coming in the next weeks.

Contributions, remarks, amendments are more than welcome


... and I have just uploaded the first version of the un-bricking guide with info on how the router boots up, what is bricked state etc. I am sure there will be many more bricked R6400 units, belonging to users who followed the same path as I did
Muzeneer
DD-WRT Novice


Joined: 06 Jan 2018
Posts: 40

PostPosted: Fri Aug 31, 2018 13:15    Post subject: Reply with quote
Flashing via Web GUI from stock to r36698M works well.

board_id= U12H332T20_NETGEAR
@m0eb@
DD-WRT User


Joined: 26 Dec 2015
Posts: 261

PostPosted: Fri Aug 31, 2018 14:09    Post subject: Reply with quote
Muzeneer wrote:
Flashing via Web GUI from stock to r36698M works well.

board_id= U12H332T20_NETGEAR


OK. Tried it.

I updated the factory-to-ddwrt file.
It loaded properly - but the router was still showing as R7000. There were clearly two networks.

Then, when I updated to the .bin file - the 5 GHz band was not showing.

Dunno if I was doing something wrong - but I followed instructions completely.

Are you getting both bands?

edit: Just checked my board.
It is printed: U12H332T20, but there is another label mentioning U12H332T30 LF
Muzeneer
DD-WRT Novice


Joined: 06 Jan 2018
Posts: 40

PostPosted: Sat Sep 01, 2018 7:50    Post subject: Reply with quote
@m0eb@ wrote:

Are you getting both bands?


Yes. Only DHCPD is not working well.
<Kong>
DD-WRT Guru


Joined: 15 Dec 2010
Posts: 4332
Location: Germany

PostPosted: Sat Sep 01, 2018 13:43    Post subject: Reply with quote
Proper builds coming this weekend.
_________________
KONG PB's: http://www.desipro.de/ddwrt/
KONG Info: http://tips.desipro.de/
@m0eb@
DD-WRT User


Joined: 26 Dec 2015
Posts: 261

PostPosted: Sat Sep 01, 2018 14:08    Post subject: Thanks Man !! Reply with quote
<Kong> wrote:
Proper builds coming this weekend.


Hey Kong ... Thanks !!Smile Smile



@ egc:
Check out
https://forum.dd-wrt.com/phpBB2/viewtopic.php?p=1139624#1139624
I finally managed to load the 36698, but I do not know exactly why I was having so many issues. Bricked and revived my router once again in the back and forth process.

Currently build 36698 is installed on my router and seems to be running stable, but already I noticed a few bugs. Muzeneer says about DHCPD ... I am yet to try any of the deeper functions (just loaded it an hour ago). Kong's "certified" build would give us a lot of confidence to load.

I think Wink someone Wink needs to get cracking with the instruction manual
egc
DD-WRT Guru


Joined: 18 Mar 2014
Posts: 3363
Location: Netherlands

PostPosted: Sat Sep 01, 2018 18:45    Post subject: Reply with quote
post deleted
_________________
Routers: Netgear R6400v1, Netgear R6400v2, Linksys EA6900 (XvortexCFE), Linksys E2000 (converted WRT320N), WRT54GS v1.
Install guide Linksys EA6900: http://www.dd-wrt.com/phpBB2/viewtopic.php?t=291230
Simple PBR (Policy Based Routing) script: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=318662
Install guide R6400v2:http://forum.dd-wrt.com/phpBB2/viewtopic.php?t=316399
OpenVPN server setup guide:
https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=318795


Last edited by egc on Tue Sep 04, 2018 10:26; edited 2 times in total
<Kong>
DD-WRT Guru


Joined: 15 Dec 2010
Posts: 4332
Location: Germany

PostPosted: Sat Sep 01, 2018 18:59    Post subject: Reply with quote
Builds are up, there are two versions. R6400V2.chk (U12H332T20_NETGEAR) and R6400V2OTP.chk (U12H332T30_NETGEAR).

Since netgear firmware checks if you use the correct one you can't do anything wrong.

The build is the same as the v1 build which I use and therefore I know it is stable. Once dd-wrt is on it you can use ddup or use dd-wrt.v24-K3_AC_ARM_STD_128K.bin the bin is for 6400v1 6400v2 and 6400v2OTP.

_________________
KONG PB's: http://www.desipro.de/ddwrt/
KONG Info: http://tips.desipro.de/
Xeon2k8
DD-WRT Guru


Joined: 11 Feb 2016
Posts: 1323

PostPosted: Sat Sep 01, 2018 19:06    Post subject: Reply with quote
Yaay!! We need a brave soul now with a board 30. In the meantime I will order again an R6400 now that is safe xD
_________________
R6400v2 (boardID:30) - Kong 36480 running since 03/09/18 - (AP - DNSMasq - AdBlocking - QoS)
R7800 - BS 31924 running since 05/26/17 - (AP - OpenVPN Client - DNSMasq - AdBlocking - QoS)
R7000 - BS 30771 running since 12/16/16 - (AP - NAS - FTP - SMB - OpenVPN Server - Transmission - DDNS - DNSMasq - AdBlocking - QoS)
R6250 - BS 29193 running since 03/20/16 - (AP - NAS - FTP - SMB - DNSMasq - AdBlocking)
roeboat
DD-WRT Novice


Joined: 05 May 2018
Posts: 14

PostPosted: Sat Sep 01, 2018 20:49    Post subject: Reply with quote
Any chance this version will work with the 6700v3? Thanks.
<Kong>
DD-WRT Guru


Joined: 15 Dec 2010
Posts: 4332
Location: Germany

PostPosted: Sat Sep 01, 2018 21:52    Post subject: Reply with quote
roeboat wrote:
Any chance this version will work with the 6700v3? Thanks.


No it won't work correctly as it will not be detected correctly. If the v3 only differs in id, then it would be easy to also add it, but I have not seen any dumps.

_________________
KONG PB's: http://www.desipro.de/ddwrt/
KONG Info: http://tips.desipro.de/
<Kong>
DD-WRT Guru


Joined: 15 Dec 2010
Posts: 4332
Location: Germany

PostPosted: Sat Sep 01, 2018 21:54    Post subject: Reply with quote
By the way, the 6400 build will also set netgears default wifi pass after a reset, just if you guys wonder.
_________________
KONG PB's: http://www.desipro.de/ddwrt/
KONG Info: http://tips.desipro.de/
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