Wifi Intermittent Slow Down Broadcom SDK 5.60 (r3702)

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What steps will reproduce the problem?
1. Reboot router
2. Works fine for a few hours (N client, WPA2/PSK/AES
3. Then intermittently becomes slow / fast and requires router reboot.

Original issue reported on code.google.com by balaran...@gmail.com on 25 Jan 2012 at 11:36

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Unfortunately, I can't reproduce problem.

Several customers has problem with adapters based on Atheros AR9285. It was 
solved by installing latest Atheros drivers.
Which Wi-Fi adapter you are using?

Original comment by lly.dev on 26 Jan 2012 at 6:40

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The adapter uses a Ralink RT3070 chipset

Original comment by balaran...@gmail.com on 28 Jan 2012 at 3:29

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I experienced something similar.
The slowness caused by the weak signal strength.
Nothing to do with the driver of the client card, I experienced this phenomenon 
with three different chipset.
It is not necessary to reboot the router, the "wl down" and "wl up" commands do 
the repair. After these commands the signal strength ok for a while.

Original comment by jmer...@gmail.com on 9 Feb 2012 at 7:39

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jmerthj:

Are you use WPA2/PSK/AES like issue creator? Can you provide "wl status" output 
in both cases - when signal is ok & not?

Seems to be problem is in new Broadcom SDK 5.60. Unfortunately there is no wl 
driver sources in public access, so we will try to upgrade to newer Broadcom 
SDK 5.100. It will take some time.

We can't rollback to old Broadcom SDK 5.10 due it don't support RT-N10U, 
RT-N12B1 & newer devices.

Original comment by lly.dev on 10 Feb 2012 at 12:08

• Changed title: Wifi Intermittent Slow Down Broadcom SDK 5.60 (r3702)

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I am using WPA2/PSK/AES too.

Here is the output of the "wl status" command when the signal is weak (RSSI = 
-70 dBm at the client adapter):

SSID: "xxxxxxxx"
Mode: Managed   RSSI: 0 dBm SNR: 0 dB   noise: -83 dBm  Channel: 12
BSSID: xx:xx:xx:xx:xx:xx    Capability: ESS ShortSlot 
Supported Rates: [ 1(b) 2(b) 5.5(b) 6(b) 9 11(b) 12(b) 18 24(b) 36 48 54 ]

After this I executed the "wl down" and "wl up" commands, and this is the 
result of the "wl status" (RSSI = -43 dBm @ client):

SSID: "xxxxxxxx"
Mode: Managed   RSSI: 0 dBm SNR: 0 dB   noise: -82 dBm  Channel: 12
BSSID: xx:xx:xx:xx:xx:xx    Capability: ESS ShortSlot 
Supported Rates: [ 1(b) 2(b) 5.5(b) 6(b) 9 11(b) 12(b) 18 24(b) 36 48 54 ] 

Further information:

wl ver

wl utility: 5.60.127.4 
wl0: Dec 16 2011 20:47:13 version 5.60.127.5 

wl revinfo

vendorid 0x14e4
deviceid 0x4329
radiorev 0x72056000
chipnum 0x4716
chiprev 0x1
chippackage 0xa
corerev 0x11
boardid 0x4cf
boardvendor 0x14e4
boardrev P218
driverrev 0x53c7f05
ucoderev 0x256013a
bus 0x0
phytype 0x4
phyrev 0x5
anarev 0x0

I set the "Wireless Mode" to "802.11g Only" because it is somewhat more stable 
than in "n" mode.

jmerthj

Original comment by jmer...@gmail.com on 10 Feb 2012 at 5:14

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Issue 299 has been merged into this issue.

Original comment by lly.dev on 16 Feb 2012 at 11:09

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Please check night builds r3836 or newer. It can be downloaded, for example, 
from:

http://asus.vectormm.net/rtn/
http://wpte.kicks-ass.net/downloads/Oleg Firmware/Nightlys/1.9.2.7-rtn/

Original comment by lly.dev on 29 Feb 2012 at 9:41

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I checked it with the r3926. Now the signal strenght is OK. I did not 
experience slow down. I hope others' experiences are the same.

wl ver

wl utility: 5.60.127.5 
wl0: Feb 25 2012 18:01:05 version 5.60.127.5  

Original comment by jmer...@gmail.com on 18 Mar 2012 at 7:04

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so, close issue.

Original comment by themiron.ru on 23 Mar 2012 at 3:43

• Changed state: Fixed

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Problem is not solved for me, i tested with the new 4051 Build, after ~30 
Minutes the connection Speed droped from 300MBit/s to 13MBit/s. Back to 3497 
and everything is OK again.

Original comment by mrmmmk...@googlemail.com on 4 Apr 2012 at 6:45

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Reopen issue for reminder

Original comment by lly.dev on 27 Apr 2012 at 3:02

• Changed state: ReOpened

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Issue 323 has been merged into this issue.

Original comment by lly.dev on 15 May 2012 at 6:16

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Same problem here with 4051.
All works fine for about 40 mins, then all WiFi traffic became really slow 
(even the WebGui). A router reboot will solve the problem until the next lock.
I'll try to go back to 3497 like in comment 10 or to an original Asus WL-500W 
f/w (v 2.x or 3.x ???) to check if it's an hardware fault, cause my WL-500W is 
very hot.

Original comment by qma...@gmail.com on 31 May 2012 at 5:02

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Wi-Fi works just fine for me on r4298, RSSI is around ~45-50 dBm. If I'm close 
to router -28 dBm.

However I can't get 300mbit on intel 5300 with BCM43222, but it might be a 
problem of backward compatability Broadcom chip with Intel.

Original comment by spameden on 7 Jun 2012 at 1:29

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Mmmm... just replaced my old WL500W with a new RT-N16, same problem with 
r4051...
Now I'll move to r4298 just suggested.
I think it's officially a bug, cause I prepared RT-N16 manually, without upload 
of settings/flashfs.

Original comment by qma...@gmail.com on 11 Jun 2012 at 4:04

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try this one for WL500W: http://www.mediafire.com/download.php?54ukbec2uhad5gb 
(r4379)

Original comment by spameden on 17 Jun 2012 at 4:08

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No r4379 compiled for RT-N16 ?
Connection speed here jumps from 300Mbps to 11Mbps without any reason...

Original comment by qma...@gmail.com on 17 Jun 2012 at 5:29

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here you go http://www.mediafire.com/?zkzjk13crsdv17m

Original comment by spameden on 17 Jun 2012 at 8:26

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might be settings with your wireless NIC

what kind of card are you using and what are your wi-fi settings on the router?

Original comment by spameden on 17 Jun 2012 at 8:26

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Thanks spameden for your help.
I've not yet flashed r4379, my experience is with latest official r4330 on 
RT-N16.
The thing that is makin' me crazy is that wi-fi connection speed starts at 
300Mbps and remain stable for about 40 mins, than jumps down up to 11Mbps. The 
only way to have again a stable connection is to reboot the router. No 
"strange" services (aMule, rtorrent and so on) running during my test.
Here attached you'll find 2 screenshots of my RT-N16 Wireless confiduration.
It's working as AP only (no bridge) and without MAC access control.

About my PC side, it's an HP Mini 210.
At office no problems at all, connection to an Apple Airport Extreme is really 
stable even after many hours and with a lot of traffic.
Here is my HW/SW configuration for the NIC:

Broadcom 43225 802.11b/g/n
Driver version: 5.60.350.6

Advanced Settings:

802.11n Preamble: GreenField
Afterburner: Disabled
Roaming Association: Disabled
Bandwidth Capability: 11b/g 20/40MHz
BT-AMP: Enabled
Bluetooth Collaboration: Automatic
Minimun energetic consuption: Enabled
Roaming Decision: Default
MAC address: Not present
PLCP BSS: Auto (short/long)
AP Compatibility: Better throughouts
IBSS WZC channel number: 11
Path: USA
Output Power: 100%
Priority and VLAN: Disabled
Fragmentation: 2346
RTS: 2347
Mixed cells support: Disabled
Xpress Technology: Enabled
Roaming: Conservative
Speed: (802.11b/g): Better Speed
WMM: Automatic

Thanks again.

Max

Original comment by qma...@gmail.com on 19 Jun 2012 at 1:03

Attachments:

• Wireless.Interface.jpg
• Wireless.Advanced.jpg

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Your router settings for Wireless is fine.

Do you experience the same behaviour with any other device?

You might need to set WMM on your client card to On instead of Auto.

Bandwidth Capability: 40Mhz

I'm not sure about 'Xpress Technology' is it turned on by default?

Original comment by spameden on 19 Jun 2012 at 1:05

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One thing you might also try is to uncheck '54g protection' on your router

Original comment by spameden on 19 Jun 2012 at 1:06

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Issue 331 has been merged into this issue.

Original comment by lly.dev on 21 Jun 2012 at 6:09

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No way to keep a 300Mbps connection, even disabling the 54g protection.
Switching from AES to TKIP, connection drops from the beginning to 36Mbps...

Original comment by qma...@gmail.com on 23 Jun 2012 at 6:42

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No, you must use AES in wireless settings.

I believe it's backware compabatibility with your wi-fi adapter.

Original comment by spameden on 23 Jun 2012 at 8:44

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I've found another issue:

when 40Mhz used - AP sometimes just disappears (so all current connections 
broke up)

in dmesg i see this:
eth1: received packet with own address as source address
eth1: received packet with own address as source address
eth1: received packet with own address as source address

switched to 20Mhz right now, it works very stable most of the time.

Original comment by spameden on 13 Aug 2012 at 6:29

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qma...@gmail.com

can you let us know if issue happens if you use 20Mhz bandwidth on the router?

Original comment by spameden on 11 Sep 2012 at 1:40

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здесь по русски можно писать ?
Такая же проблема. Но редко конечно, вдруг 
при нормально работающем роутере RTN16 r4330
падает соединение с 300 до 13 мегабит\с

Роутер в 3 метрах стоит , прямая видимость.
Адаптеры использую asus n13 , dlink-140

Original comment by den1230...@gmail.com on 13 Sep 2012 at 6:12

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а на старой версии прошивки нормально 
работает? r3323 ревизии например?

Original comment by spameden on 13 Sep 2012 at 6:47

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к сожалению не смогу сказать с какой именно 
прошивки пошло такое

но
r3702
r4051
r4330
на этих с гарантией такое.

Сначало я думала что это только на свистке 
asus n13 , потом поняла что это на любых где 
работает N, в других стандартах отлично 
работает...

Original comment by Olesya...@gmail.com on 14 Sep 2012 at 4:37

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Как насчет r3300 и r3497?

Original comment by spameden on 14 Sep 2012 at 5:21

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Вы скажите 3300 поставить ? просто у меня это 
крайне редко бывает, но бывает.
Если нужно поставлю , буду тестировать если 
это конечно реально поможет в других 
версиях.

Но как вы и написали скорее всего дело в new 
Broadcom SDK 5.60

Original comment by Olesya...@gmail.com on 14 Sep 2012 at 5:26

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Попробуйте 3300 - и настройки wifi дайте ваши.

Original comment by spameden on 14 Sep 2012 at 5:27

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хорошо сейчас залью и буду тестировать, 
правда как и говорила что процесс этот 
может быть долгим для меня..

Original comment by Olesya...@gmail.com on 14 Sep 2012 at 6:10

Attachments:

• 01.jpg

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WPA Encryption поменяйте на AES.
Authentication Method - WPA2-Personal.

Original comment by spameden on 14 Sep 2012 at 6:17

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было так 
WPA Encryption поменяйте на AES

не давно поставила еще и + tkip

а wpa2 у меня все соединения.

залила 3300 , сейчас поставлю как вы еще 
сказали ..

Original comment by Olesya...@gmail.com on 14 Sep 2012 at 6:24

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TKIP не совместим с 802.11n

WPA2-Personal должно быть и AES.

Original comment by spameden on 14 Sep 2012 at 6:39

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Если конечно это поможет.
на всех свистках принудительно стоит и 
было AES и wpa2-personal
пока сижу на прошивки 3300 , замечаний нет, 
буду дальше ждать это случая.

Original comment by Olesya...@gmail.com on 15 Sep 2012 at 4:27

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извините конечно , может не в эту тему, а 
может как раз и туда
кстати тоже появилось такое что первичной 
настройки роутера , при вписании DNS вручную, 
все равно после перезагрузки пользуется 
провайдерским выданным автоматом днс.
Но визуально показывает что ДНС которые 
вручную прописанные.
Я использую USB модем , после переключений с 
usbмодема на автоматические ip и стираний DNS , 
в какой то момент начинают идти наконец 
запросы на прописанные dns , после этого все 
нормально работает.

Original comment by den1230...@gmail.com on 15 Sep 2012 at 6:13

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2 Olesya..:

Вы в роутере настройки сменили? Для 
стабильной работы 802.11n именно нужно 
использовать связку, что я дал.

2 den1230..:
какая версия прошивки? лучше отдельный 
баг-репорт с деталями.

Original comment by spameden on 15 Sep 2012 at 6:17

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да это я одно лицо, просто много аккаунтов 
завязаны на гугл.

Да все поставила как вы и сказали .

версии прошивки тоже примерно с этих было 
так
r3702
r4051
r4330

На rtn16 и wl500gpv2 тоже самое , первоначально 
мучилась с настройками по этому поводу.

Original comment by den1230...@gmail.com on 15 Sep 2012 at 7:15

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Лучше описать в отдельный issue подробно, что 
за проблема. Из вашего описания - ничего не 
понятно.

Original comment by spameden on 15 Sep 2012 at 4:50

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1. по поводу wi-fi N на 3300 прошивки пока все 
хорошо, тестирую дальше
2. по поводу днс 
суть проблемы в том что вручную 
прописанные днс просто игнорируются и 
берутся днс что дал провайдер. (визуально 
видно что прописались и в логах и в 
настройках)
Jan  1 06:00:02 dnsmasq[209]: using nameserver 208.67.222.222#53
Jan  1 06:00:02 dnsmasq[209]: using nameserver 208.67.220.220#53
но на самом деле не так 
Но я проверяла это только на Usb модеме 
(проверить на automatic ip не могу)
Вот как подергаю эти параметры usbmodem и automatic 
ip и конечно стеру днс свои , перегружаю 
роутер конечно после манипуляций... и потом 
начинает работать правильно все (днс 
вручную прописанные наконец обращается к 
ним)

Я дотестирую еще 3300 недельку, если вы 
исправите с падением скорости в какой 
нибуть прошивке.. тогда я точно воссоздам 
как произвести проблему с днс точно..

Original comment by den1230...@gmail.com on 16 Sep 2012 at 10:00

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Вручную прописанные днс работают после 
перезагрузки? 
Его надо после изменений настроек 
перезагружать.

Ну, так и должно быть все.

Я не разработчик :)

Original comment by spameden on 16 Sep 2012 at 10:17