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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хоть что то сдвинулось, скажите 4731 нету тут 
http://asus.vectormm.net/rtn/
где я могу найти r4731 для rtn16

Original comment by den1230...@gmail.com on 26 Nov 2012 at 5:12

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установила 4731 начала тесты.

Баги или я просто не знаю 

Status & Log - USSD
перестал выдавать сообщения о сети и 
сигнале модем e392 , начиная с 3300 все 
выдавалось без проблем

Original comment by den1230...@gmail.com on 26 Nov 2012 at 11:55

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На прошивки r4731 за сутки все работает 
отлично в плане WI-FI N , но все равно пришлось 
скатиться опять на 3300 , не отдает 
информацию по модему e392 , ни как идеальную 
прошивку не найду..

Original comment by den1230...@gmail.com on 27 Nov 2012 at 9:18

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Could you please write in English?

Original comment by mauro...@tiscali.it on 27 Nov 2012 at 9:39

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I can only through the interpreter from google.On firmware r4731 issue with 
modem huawei e392, does not show information about the modem, the operator, 
signal and etc..I had to revert to 3300 there shows signal and works WIFI N

Original comment by den1230...@gmail.com on 27 Nov 2012 at 12:55

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подскажите где брать новые прошивки на 
основе 5.10 , понимаю все специалисты и сами 
делаете ,но тоже хочется жить и не мучиться 
..

Original comment by den1230...@gmail.com on 30 Nov 2012 at 12:20

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Since this branch is experimental now, it recommended for experienced users 
only.

For example, http://wpte.kicks-ass.net/downloads/Oleg 
Firmware/Nightlys/1.9.2.7-sdk5.10/

Original comment by lly.dev on 30 Nov 2012 at 4:48

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Thank you

Original comment by den1230...@gmail.com on 1 Dec 2012 at 5:51

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RT-N16-rtn-sdk510-r4743.trx don't work installed soft, like MC, openvpn, etc...
After RT-N16-1.9.2.7-rtn-r3497.trx all is work again.

Original comment by kosss...@gmail.com on 6 Dec 2012 at 7:51

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You have to read wl500g.info forum, especially about flashfs.

Please don't flood this issue with non Wi-Fi related problems. Use forum in 
case of you have insufficient knowledge in Unix-like systems.

Original comment by lly.dev on 8 Dec 2012 at 7:53

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try out r4772 firmware from http://asus.vectormm.net/rtn/4772/
also, it's better to reset settings to factory defaults after flashing and 
setup again manually, settings restore will bring back almost all the issues.

Original comment by themiron.ru on 19 Dec 2012 at 4:31

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Recently (last 2-3 months) i notice some weird behaviour with wireless, what i 
notice it that when i poweron router all works just fine, hours later or next 
day wireless coverage is cutted alot. I lost connection on the same places i 
had previously wireless coverage working fine. The worst part is that on most 
of them i cannot even detect my wireless network, i need to get much closer to 
the router to get coverage, once i reboot the router via ssh or telnet or 
shutdown and power on again things got normal go  normal again until the next 
day the same problem appear. I try it all, b,g,n, auto, channels change, load 
defaults without importing .cfg i cannot get rid of it, im sure if i install a 
older FW this will be fixed, the problem is to know what version :-) Maybe 
r3xxx ...

Original comment by hggo...@gmail.com on 24 Dec 2012 at 3:07

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Another problem that i noticed, on r4770 and r4772 (at least these ones), it's 
not possible to do a 'reboot' via SSH if usb devices connected, first power led 
will turn off and after the wireless led should do the same but will not turn 
off, the result will be a "hang" and offcourse it will not reboot. With 4603 
it's working just fine. I waste 1h testing this and it's confirmed by me.

Thanks

Original comment by hggo...@gmail.com on 24 Dec 2012 at 6:08

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hggomez:
Problem with reboot must be outside this issue. Additionally, I can't reproduce 
it. Probably, you have custom scripts incompatible with busybox 1.20. And r4603 
is too old, try r4667 previous release.

Original comment by lly.dev on 24 Dec 2012 at 6:32

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Ok thanks, i will try to found where the problem is then, what about the 
wireless issues? 

Thanks alot.

Original comment by hggo...@gmail.com on 24 Dec 2012 at 1:55

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Please read entire thread. Except defaults, we can't modify Wi-Fi driver due 
missing sources.

As for me, I can't reproduce similar symptoms.

Original comment by lly.dev on 24 Dec 2012 at 2:01

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Why not use the 5.100 SDK sources from ASUS like Tomato does?

Thanks

Original comment by hggo...@gmail.com on 24 Dec 2012 at 5:23

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5.100 SDK sources?

can you give us a proof link, there is only leaked source from one of the 
Belkin-F7D4401, but they are not compatable with ASUS (you need to tweak 
something there to make it work or probably alter source code as well).

Original comment by spameden on 24 Dec 2012 at 5:44

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Tomato Fw uses 5.100.x drivers on RT-N16 and RT-N66U and they come from ASUS, 
so if they are able to do it im quite positive this team can do it also. Maybe 
they use the binaries don't know actually if the have access to source code, 
probably not, but DD-WRT and OpenWRT have.

Original comment by hggo...@gmail.com on 24 Dec 2012 at 8:10

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We have plans migrate to SDK 5.100, but it requires time resources...

Once again(10x) - DD-WRT sign NDA as commercial organization and pays some fee 
to access SDK sources. OpenWRT hasn't sources, they use custom compiled Wi-Fi 
driver donated by some friend/organization.

Original comment by lly.dev on 25 Dec 2012 at 6:52

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I was refearing to Tomato, i knew already about OpenWRT and DD-WRT. I'ts time 
to find also some friend/organization that could donate drivers to you lly ;) 
hehee

Thanks again.

Original comment by hggo...@gmail.com on 25 Dec 2012 at 4:37

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Well, after lots of testing heres the results:

When i turn on / or reboot the router i've got this values:

pc1: 45% signal quality
pc2: 67% signal quality
pc3: 82% signal quality

Randomly (1H-30H later) i lost wireless connection (on the worst signal 
clients) and got signal drastical worst on the others, this is the result:

pc1: 1-10% signal quality (lost connection)
pc2: 30-37% signal quality
pc3: 45-52% signal quality

I can resolve this issues with a simple: wl down / wl up / wl restart

Wireless goes normal again. It seems 5.10 its ok so far, the problem is that i 
cannot reboot router with USB devices connected, probably because buxybox 1.20 
script incompatibility just like LLY said before.

Thanks.

Original comment by hggo...@gmail.com on 31 Dec 2012 at 3:35

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Hi!

I use the 5.10 Versions now since 4743 without any problems, thank you for your 
work making extra Versions for sdk5.10 :).

Is it normal that i can get only connectet with 130MBit to my RT-N16? I tried 
many things to get the full 300MBit, but has no success till now.

Original comment by mrmmmk...@googlemail.com on 17 Mar 2013 at 6:30

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what range are you using?

what kind of wireless card you've got?

it depends on lotsa factors

for example on intel 5100/5300 300mbit (40Mhz) on 2.4Ghz is locked in EEPROM on 
few cards and also they are not allowing to connect if there are many other APs 
around you

anyways, I don't recommend using 300mbit because it's quite buggy and can lead 
to random disconnects even on SDK 5.10

the most stable was 144/130 mbit mode for me (20Mhz)

Original comment by spameden on 17 Mar 2013 at 6:54

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Some remarks for my october'12 posts. I test tomato, wrt and merlin firmware. 
In merlin fw I see that cpu temperature over 60 C degrees. After installing 
cooler from Intel P4 CPU in place between 2 chips on RT-N16 PCB temperature 
about 40-42 C degrees. Now I didn't have any problems with WiFi stretch and 
slow down speed. Now I test latest stock fw 3.0.0.4.354, 7 days without 
problems. 

Original comment by IvanNi...@gmail.com on 1 Apr 2013 at 8:06

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Issue 395 has been merged into this issue.

Original comment by lly.dev on 12 May 2013 at 9:10

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Same results here flashing with 3.0.0.4.354 from Asus.
WiFi strong and fixed speed at 270 Mbps.

Original comment by qma...@gmail.com on 26 May 2013 at 7:17

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Issue 408 has been merged into this issue.

Original comment by themiron.ru on 5 Oct 2013 at 11:52

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RT-N16

Hi,
 iam having same issue over an year(lot of versions has changed). Most of time with only 1 client connected on wifi. Signal is perfect(-40db) all time. Cant figure out whats happening, but after restarting router, transfer speeds are ~11MB/s and few days later(3) it drops down and cant get more than ~3MB/s. On ethernet side is 1pc connected 24/7, but it doesnt have any issue.
Thers no connections,signal,ping,cpu dropouts. just wibi become slow. Nothing 
special found in log.

Same as here 
http://www.linksysinfo.org/index.php?threads/wireless-connection-getting-slow-af
ter-some-days-on-rt-n16-toastman.68707/

Original comment by yabl...@gmail.com on 21 Sep 2014 at 9:10