Kong Build r30880M - Nov 14 '16

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<Kong>
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Joined: 15 Dec 2010
Posts: 4339
Location: Germany

PostPosted: Sun Dec 04, 2016 8:37    Post subject: Reply with quote
vit5421 wrote:
Dear Kong,
The latest nov15 build 30880 is dropping 5Ghz wifi on Wrt19000acv1 every hour or so for couple seconds. It worked great before with same settings on every previous builds starting June 24 2016.


Yes I know. 2 years after the driver got released it is still crap and as these radios come with a closed source firmware, there is nothing we can do.

I just did tests with the 1200AC last month in my test bed(business environment with lots of clients), and it completely sucks:

-wireless throughput dos not come close the my broadcom or atheros units

-wireless drops

-issues with some clients

Thus for me these units are just for playing but not usable in production.

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Brewder
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Joined: 26 Dec 2015
Posts: 178

PostPosted: Sun Dec 04, 2016 16:15    Post subject: Reply with quote
<Kong> wrote:


Yes I know. 2 years after the driver got released it is still crap and as these radios come with a closed source firmware, there is nothing we can do.

I just did tests with the 1200AC last month in my test bed(business environment with lots of clients), and it completely sucks:

-wireless throughput dos not come close the my broadcom or atheros units

-wireless drops

-issues with some clients

Thus for me these units are just for playing but not usable in production.


This is very interesting.. My WRT1900AC has been very solid even with the latest build (30880M). I've been on vacation the last two weeks and have probably watched 200 hours of streaming HD video from Amazon via my 5Ghz network (binging on the Sopranos!). Never once has it skipped a beat. Several days I streamed 6-8 hours continuously. I have approximately 15 wireless devices on my network and 5 hard wired devices.

Anyway... since I moved from BS builds to Kong builds, my unit is rock solid.

//Brew
vit5421
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Joined: 12 Nov 2015
Posts: 413

PostPosted: Sun Dec 04, 2016 16:20    Post subject: Reply with quote
Dear Kong,
Thank you for comment.
As i mentioned before it worked great with previous builds and something is really wrong with the latest one on 5 GHz only.
What router you will recommend then based on your experience and available builds?
<Kong>
DD-WRT Guru


Joined: 15 Dec 2010
Posts: 4339
Location: Germany

PostPosted: Sun Dec 04, 2016 18:29    Post subject: Reply with quote
vit5421 wrote:
Dear Kong,
Thank you for comment.
As i mentioned before it worked great with previous builds and something is really wrong with the latest one on 5 GHz only.
What router you will recommend then based on your experience and available builds?


Yes this is a new bug, but the throughput and client issues have been there all the time. I've done tests for several months with several units before I choose our production router.

There are issues that won't affect the regular user, but there are tons of issues that exists which do not exist on a R7000. E.g. one of the features that completely made it impossible for me to use the new WRTs, you cannot exchange one of the antennae with a stronger one e.g. attach one patch panel once you do that you practically get no throughput anymore. This unit needs matching antennae.

This is no issue with the R7000, on some of my R7000 I have detached all oem antennae and only attached one patch panel, it works with full throughput in single stream mode.

I have a large number of R7000 some with 300+ days uptime, some of them have to transfer terabytes each day and work with a large number of clients, even eneterrise routers from cisco,ubnt,mikrotik could not pass my tests.

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


Joined: 13 Jun 2006
Posts: 1608
Location: SE Michigan USA

PostPosted: Mon Dec 05, 2016 1:57    Post subject: Reply with quote
<Kong> wrote:
vit5421 wrote:
Dear Kong,
The latest nov15 build 30880 is dropping 5Ghz wifi on Wrt19000acv1 every hour or so for couple seconds. It worked great before with same settings on every previous builds starting June 24 2016.


Yes I know. 2 years after the driver got released it is still crap and as these radios come with a closed source firmware, there is nothing we can do.

I just did tests with the 1200AC last month in my test bed(business environment with lots of clients), and it completely sucks:

-wireless throughput dos not come close the my broadcom or atheros units

-wireless drops

-issues with some clients

Thus for me these units are just for playing but not usable in production.


@kong
Do you have any idea why I can get better 5GHz troughput on my wrt1900acs v1 running LEDE build with the same wireless driver as DD-WRT. Specifically I am talking about davidc502's LEDE builds. Has always been that way, not something new. I run a iperf test on the 5GHz after every new build is installed. Openwrt/LEDE is always faster then DD-WRT on 5GHz wireless. Am guessing you are aware of this, just wonder why.

--bill

_________________
Unifi Security Gateway: Unifi Firmware
Netgear r7800: Voxel Firmware
Modem:Netgear CM500V voice and Data.
ISP:Comcast
tutorial for flashing "WRT" series:
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=287813
DD-WRT Installation, Upgrade & Basic Setup–Cliff Notes:
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=311117
Kong DD-WRT Config Tutorial:
http://www.instructables.com/id/Install-and-Configure-a-DD-WRT-Kong-Router/
I tried to be normal once. Worst 2 minutes ever.
<Kong>
DD-WRT Guru


Joined: 15 Dec 2010
Posts: 4339
Location: Germany

PostPosted: Mon Dec 05, 2016 6:41    Post subject: Reply with quote
myersw wrote:
<Kong> wrote:
vit5421 wrote:
Dear Kong,
The latest nov15 build 30880 is dropping 5Ghz wifi on Wrt19000acv1 every hour or so for couple seconds. It worked great before with same settings on every previous builds starting June 24 2016.


Yes I know. 2 years after the driver got released it is still crap and as these radios come with a closed source firmware, there is nothing we can do.

I just did tests with the 1200AC last month in my test bed(business environment with lots of clients), and it completely sucks:

-wireless throughput dos not come close the my broadcom or atheros units

-wireless drops

-issues with some clients

Thus for me these units are just for playing but not usable in production.


@kong
Do you have any idea why I can get better 5GHz troughput on my wrt1900acs v1 running LEDE build with the same wireless driver as DD-WRT. Specifically I am talking about davidc502's LEDE builds. Has always been that way, not something new. I run a iperf test on the 5GHz after every new build is installed. Openwrt/LEDE is always faster then DD-WRT on 5GHz wireless. Am guessing you are aware of this, just wonder why.

--bill


Because they use a 4.x kernel on 2.4 you won't really see any diff, as 2.4 is so slow, that you don't see the improvements, but in 5G and NAT you can tell the difference, it was the same with broadcom when we jumped from 3.10 to 4.4. But these are just little improvements, marvel is so far away from broadcom performance, that this does not matter.

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


Joined: 03 Jun 2016
Posts: 91

PostPosted: Mon Dec 05, 2016 18:14    Post subject: Reply with quote
Junior2377, I would stick with the standard 1,6,11 channels on the 2.4 radio if you choose your settings manually. One thing I did notice was that you have WMM disabled - this will basically cripple wireless "N" support on that band. Enable this option and see if that makes a difference for you. You may see slight improvement with short preamble enabled. Only keep long if you have very old devices or get a lot of transmit errors. I would also recommend changing the sensitivity back to default.

More detailed explanations on most of these settings:
https://www.dd-wrt.com/wiki/index.php/Advanced_wireless_settings
myersw
DD-WRT Guru


Joined: 13 Jun 2006
Posts: 1608
Location: SE Michigan USA

PostPosted: Mon Dec 05, 2016 22:18    Post subject: Reply with quote
<Kong> wrote:
myersw wrote:
<Kong> wrote:
vit5421 wrote:
Dear Kong,
The latest nov15 build 30880 is dropping 5Ghz wifi on Wrt19000acv1 every hour or so for couple seconds. It worked great before with same settings on every previous builds starting June 24 2016.


Yes I know. 2 years after the driver got released it is still crap and as these radios come with a closed source firmware, there is nothing we can do.

I just did tests with the 1200AC last month in my test bed(business environment with lots of clients), and it completely sucks:

-wireless throughput dos not come close the my broadcom or atheros units

-wireless drops

-issues with some clients

Thus for me these units are just for playing but not usable in production.


@kong
Do you have any idea why I can get better 5GHz troughput on my wrt1900acs v1 running LEDE build with the same wireless driver as DD-WRT. Specifically I am talking about davidc502's LEDE builds. Has always been that way, not something new. I run a iperf test on the 5GHz after every new build is installed. Openwrt/LEDE is always faster then DD-WRT on 5GHz wireless. Am guessing you are aware of this, just wonder why.

--bill


Because they use a 4.x kernel on 2.4 you won't really see any diff, as 2.4 is so slow, that you don't see the improvements, but in 5G and NAT you can tell the difference, it was the same with broadcom when we jumped from 3.10 to 4.4. But these are just little improvements, marvel is so far away from broadcom performance, that this does not matter.


@Kong
Thanks for the info. I wondered it part of the difference was the kernel versions. Understand about Marvell being behind.
--bill

_________________
Unifi Security Gateway: Unifi Firmware
Netgear r7800: Voxel Firmware
Modem:Netgear CM500V voice and Data.
ISP:Comcast
tutorial for flashing "WRT" series:
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=287813
DD-WRT Installation, Upgrade & Basic Setup–Cliff Notes:
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=311117
Kong DD-WRT Config Tutorial:
http://www.instructables.com/id/Install-and-Configure-a-DD-WRT-Kong-Router/
I tried to be normal once. Worst 2 minutes ever.
apvm
DD-WRT User


Joined: 13 May 2012
Posts: 166

PostPosted: Mon Dec 05, 2016 23:09    Post subject: Reply with quote
Disappointed from Kong's comment. No wonder the MBA which connected via 5GHz upstairs is complainting internet dropping once in a while lately. Going back to EA6900 with Xvortex modded merlin firmware to test.
myersw
DD-WRT Guru


Joined: 13 Jun 2006
Posts: 1608
Location: SE Michigan USA

PostPosted: Tue Dec 06, 2016 1:21    Post subject: Reply with quote
apvm wrote:
Disappointed from Kong's comment. No wonder the MBA which connected via 5GHz upstairs is complainting internet dropping once in a while lately. Going back to EA6900 with Xvortex modded merlin firmware to test.


If you would like to try something else, have you given Openwrt/LEDE a try? I find it runs quite well and has faster throughput then DD-WRT.
This build has proven drivers and folks do not report drops like latest wireless drivers. Here is link to builds if you are interested. Davidc502 provides solid LEDE builds. Here is link

http://davidc502sis.dynamic-dns.net/TrunkSnapShot4.4.7.html

--bill

_________________
Unifi Security Gateway: Unifi Firmware
Netgear r7800: Voxel Firmware
Modem:Netgear CM500V voice and Data.
ISP:Comcast
tutorial for flashing "WRT" series:
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=287813
DD-WRT Installation, Upgrade & Basic Setup–Cliff Notes:
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=311117
Kong DD-WRT Config Tutorial:
http://www.instructables.com/id/Install-and-Configure-a-DD-WRT-Kong-Router/
I tried to be normal once. Worst 2 minutes ever.
vit5421
DD-WRT User


Joined: 12 Nov 2015
Posts: 413

PostPosted: Tue Dec 06, 2016 2:13    Post subject: Reply with quote
Dear Bill,
What is the real 5GHz file transfer speed for WRT1900ac v1 on Openwrt/LEDE Davidc502?

I got 200-220mbs 1gb file transfer read speed on Kong ddwrt 30815 build(10/31/16} and its stable at 10 feet 5Ghz ac

Its very consistent with following test data for WRT1900ac and Netgearr7000
http://www.hardwarezone.com.sg/feature-ac1900-wireless-router-shootout-asus-vs-d-link-vs-linksys-vs-netgear/performance-benchmarking-1
 
apvm
DD-WRT User


Joined: 13 May 2012
Posts: 166

PostPosted: Tue Dec 06, 2016 15:31    Post subject: Reply with quote
myersw wrote:
apvm wrote:
Disappointed from Kong's comment. No wonder the MBA which connected via 5GHz upstairs is complainting internet dropping once in a while lately. Going back to EA6900 with Xvortex modded merlin firmware to test.


If you would like to try something else, have you given Openwrt/LEDE a try? I find it runs quite well and has faster throughput then DD-WRT.
This build has proven drivers and folks do not report drops like latest wireless drivers. Here is link to builds if you are interested. Davidc502 provides solid LEDE builds. Here is link

http://davidc502sis.dynamic-dns.net/TrunkSnapShot4.4.7.html

--bill


Thanks, where to enter fw_setenv boot_part 1 from the firmware itself or I have to ssh in to issue the command?

Will flash it soon to test. Tested EA6900 and 5Ghz is solid so looks like DDWRT latest 5GHZ still problem.
myersw
DD-WRT Guru


Joined: 13 Jun 2006
Posts: 1608
Location: SE Michigan USA

PostPosted: Tue Dec 06, 2016 17:50    Post subject: Reply with quote
You issue the command fw_setenv boot_part 1 after ssh into the router. After that command do a command reboot and router will reboot to what ever is on partition 1.

@vit5421
I do not do file transfers to the router. I have a separate NAS I use.

I do a iperf test of the 5GHz wireless with each build and Openwrt/LEDE is always faster. Kong has stated that part of the speed difference between Openwrt/LEDE and DD-WRT is the kernel versions.

--bill

_________________
Unifi Security Gateway: Unifi Firmware
Netgear r7800: Voxel Firmware
Modem:Netgear CM500V voice and Data.
ISP:Comcast
tutorial for flashing "WRT" series:
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=287813
DD-WRT Installation, Upgrade & Basic Setup–Cliff Notes:
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=311117
Kong DD-WRT Config Tutorial:
http://www.instructables.com/id/Install-and-Configure-a-DD-WRT-Kong-Router/
I tried to be normal once. Worst 2 minutes ever.
apvm
DD-WRT User


Joined: 13 May 2012
Posts: 166

PostPosted: Tue Dec 06, 2016 18:00    Post subject: Reply with quote
Testing LEDE DAVE now, wifi is better than ddwrt. Will see if it drops or not.

Last edited by apvm on Tue Dec 06, 2016 19:43; edited 1 time in total
vit5421
DD-WRT User


Joined: 12 Nov 2015
Posts: 413

PostPosted: Tue Dec 06, 2016 18:20    Post subject: Reply with quote
Dear Bill,
I have a Synology Nas for the file transfer as well and testing read speed from Nas to my laptop.  Can you please publish your test data for read/write performance for ddwrt and Open/LEDE one more time?

The Kong has stated about 4.x kernel that "these are just little improvements, marvel is so far away from broadcom performance, that this does not matter"
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