Netgear R6400 v2 and R6700v3 Install Guide

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nov0
DD-WRT Novice


Joined: 18 Feb 2019
Posts: 3

PostPosted: Sat Feb 23, 2019 3:15    Post subject: slow TX speeds Reply with quote
Further to my last post... I went back to stock. RX speeds improved marginally, and TX speeds improved to expected 50Megabytes/second when sitting next to the router. Something either wrong with the firmware, or else something I inadvertently did to the config. I did clear the memory as instructed, and the slowness was present from the moment I flashed it with DDWRT.
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egc
DD-WRT Guru


Joined: 18 Mar 2014
Posts: 3403
Location: Netherlands

PostPosted: Sat Feb 23, 2019 9:29    Post subject: Reply with quote
As a lot of people (including me) are using this build so there is probably something wrong in your settings.

The most important thing when coming from stock is to telnet into you router and do:
Code:
nvram erase && reboot

Setup manully do not restore from backup.

When setting up wireless settings always use a channel number do not use auto channel, choose your channel with Wifi analyser on your phone to see the best channel or use Status/Wireless/Site survey

Always use WPA2-PSK/AES for security.

Leave everything else at default.
Depending on the client used you should get a connection of 72 to 144 Mb/s, which efectively gives you 2/3 of that.

If that works you can set additonal channel width, when doing this it often reverts to auto channel, just toggle Upper/Lower save/apply and you can set the channel number.

With VHT 80 I get connnections of 866 Mb/s on 5 GHz

_________________
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
wavymaybewrt
DD-WRT Novice


Joined: 13 Dec 2016
Posts: 1

PostPosted: Tue Mar 05, 2019 19:22    Post subject: Reply with quote
@egc
Thanks for a very nice install guide for the Netgear R6400v2.
I will be trying it in a bit on my R6400v2 with board_id=U12H332T30_NETGEAR.
I found two discrepancies:
- I 'upgraded' my stock firmware before reading your guide an ended up with V1.0.3.66_10.0.50. I was able to enable telnet w/o any program just in the debug page.

- At 4 f in your guide you say to issue :cat /dev/mtd4 > /tmp/shares/S_Drive/mtd4_boarddata.bin
to backup partition 5 however my router sees the USB drive as USB_Storage thus i used:
cat /dev/mtd4 > /tmp/shares/USB_Storage/R6400Backups/mtd4_boarddata.bin
to save in the R6400Backups directory I made on the usb drive.

Thanks again for your efforts
lolcocks
DD-WRT User


Joined: 31 May 2013
Posts: 107

PostPosted: Mon Mar 11, 2019 19:59    Post subject: Reply with quote
egc wrote:
As a lot of people (including me) are using this build so there is probably something wrong in your settings.

The most important thing when coming from stock is to telnet into you router and do:
Code:
nvram erase && reboot

Setup manully do not restore from backup.

When setting up wireless settings always use a channel number do not use auto channel, choose your channel with Wifi analyser on your phone to see the best channel or use Status/Wireless/Site survey

Always use WPA2-PSK/AES for security.

Leave everything else at default.
Depending on the client used you should get a connection of 72 to 144 Mb/s, which efectively gives you 2/3 of that.

If that works you can set additonal channel width, when doing this it often reverts to auto channel, just toggle Upper/Lower save/apply and you can set the channel number.

With VHT 80 I get connnections of 866 Mb/s on 5 GHz


Wow! Nice speeds.

I got an R6400v2 today and flashed KONG's 38580 build.
Looks to be working great except one thing. And yes, I erased the nvram through telnet.

The WiFi speed.
I set the Channel Width to VHT80, yet, in Sys-Info I am shown a speed of 233 MBPS.
I tried setting the wireless channel to Auto and even tried manually setting the channels individually.

Sometimes it shows 1300 MBPS but then goes back to 233 or some lower values.

When I tried to copy two files from laptop to laptop using 5 GHz WiFi, I got a speed of 6 MB/s which is about 48 MBPS (even though Sys-Info was showing 233 MBPS). Both laptop were sitting next to the router.

Why is this happening? Am I missing something?
My issue with the R7000 was similar I believe.
Is there a way I can lock down the speed to 1300 MBPS at all times? I think the stock firmware locks it down as well.
egc
DD-WRT Guru


Joined: 18 Mar 2014
Posts: 3403
Location: Netherlands

PostPosted: Tue Mar 12, 2019 9:40    Post subject: Reply with quote
The speed shown is the possible maximum theoretical speed, if there is no traffic speed goes down, it is a kind of powersaving I guess.

If you have two laptops connected for throughput measurement then you effectively half the speed if they are both on wireless.

All those speeds are theoretical and very dependend on circumstances and on clients. There are not much clients with a 3 stream wireless setup.

Also some channel combinations work better than others so use different channel settings but do not use auto.

Just did a quick test using my phone which connects with 866Mb/s (it is an Samsung S7 with 2 streams) but actual measured throughput 330 Mb/s and that is just a limitation of my phone, with a connection speed of 866Mb/s you should be able with good hardware to get around 500 Mb/s, but that is one client from wireless to wired if you have two clients so from wireless to wireless you half that speed.

In the next room speed drops of sharply

I have my house wired, only phones and tablets are on wireless.

_________________
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
djpctech
DD-WRT Novice


Joined: 12 Mar 2019
Posts: 2

PostPosted: Tue Mar 12, 2019 15:54    Post subject: Reply with quote
Hi all,

Complete newb here so please bare with me. I wanted to setup a VPN Client on the Netgear R6400v2, so decided to flash DD-WRT. I spent a good three hours yesterday evening going through this forum until I decided to go through with it. Went from stock to dd-wrt.v24-K3_AC_ARM_STD_128K.bin, almost effortlessly following the guide provided by @egc(Does dd-wrt use tags?) Needless to say, I have a functioning flashed router with OpenVPN client setup through NordVPN.

Probably the most difficult part of this I believe was going through this whole thread and reading all the issues that may arise(and the cat fight that was going on). For example, the 5GHZ radio was running slower than the 2.4GHZ which usually is the other way around on my extremely max speeds of 30Mbps.

Another issue was enabling telnet on the router on stock. Couldn't get to the 192.168.1.1/debug.htm page but that was probably due to not clearing my web cache.

Oh and for recording purposes, I had a boardid=U12H332T20_NETGEAR.

I will continue testing today
egc
DD-WRT Guru


Joined: 18 Mar 2014
Posts: 3403
Location: Netherlands

PostPosted: Tue Mar 12, 2019 16:11    Post subject: Reply with quote
Welcome to the forum

Yes tags are used. Smile

Newer stock firmware does not let you enable telnet, you have to use the workarounds with nte or you have to donwgrade the stock firmware (which is probably also not supported any more by Netgear).

for 5GHz settings see a couple of posts back

I have a theory that newer R6400v2 have the XX30 boardid, is yours from late 2017 or early 2018?

_________________
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
djpctech
DD-WRT Novice


Joined: 12 Mar 2019
Posts: 2

PostPosted: Wed Mar 13, 2019 16:11    Post subject: Reply with quote
egc,

Dunno about the year. I recently bought second hand off of someone. They told me it was brand new but I guess they were referring to the condition and not when they purchased it.

Anyways, Thanks so much for the guide. It worked liked a charm. The router is working just fine. Will be testing with higher speeds soon.

Kong, thanks so much for the build!
uziq
DD-WRT User


Joined: 02 Jan 2008
Posts: 62

PostPosted: Tue Mar 26, 2019 21:12    Post subject: Reply with quote
I've got a refurbished 6400v2 with firmware v1.0.2.56_10.0.42 and a board id of U12H332T20.

I've read the thread and will probably attempt flashing to the latest BS beta, but just thought I'd post here first in case someone has advice.

My plan is to use factory-to-dd-wrt.chk and then netgear-r6400v2-webflash.bin.

..wasn't sure about using Kong's since he's apparently stopped development.(?)
egc
DD-WRT Guru


Joined: 18 Mar 2014
Posts: 3403
Location: Netherlands

PostPosted: Wed Mar 27, 2019 8:46    Post subject: Reply with quote
Kong's builds are gone, at least for the moment, so you can use BS builds, start by looking in the build threads if the builds are safe to use
_________________
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
uziq
DD-WRT User


Joined: 02 Jan 2008
Posts: 62

PostPosted: Fri Mar 29, 2019 22:34    Post subject: Reply with quote
Flashing to the latest build (39296) was a success. No problems at all. Thanks for the guide. Smile
TXUSA
DD-WRT Novice


Joined: 22 Jul 2018
Posts: 41

PostPosted: Sat Mar 30, 2019 2:58    Post subject: Reply with quote
I’m late to the party... did Kong quit ? I realized the desipro directory is gone.
egc
DD-WRT Guru


Joined: 18 Mar 2014
Posts: 3403
Location: Netherlands

PostPosted: Sat Mar 30, 2019 7:15    Post subject: Reply with quote
Unfortunately it appears so Sad
_________________
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
alixjg
DD-WRT Novice


Joined: 28 Jul 2014
Posts: 11

PostPosted: Sat Mar 30, 2019 16:02    Post subject: Reply with quote
I'm hoping this is only temporary, I also noticed today that desipro.de/ddwrt is gone...
jtsurfs
DD-WRT Novice


Joined: 17 Dec 2011
Posts: 4

PostPosted: Sat Apr 27, 2019 4:54    Post subject: Weird Behavior on 37015 build 6400v2 Reply with quote
So today for some odd reason my router has started to not respond to the ip address thru a browser. I shut it off and power on and it works again but after some time the same thing happens. I also noticed the WIFI starts dropping out. Should i install a build newer tghen the 37015?
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