No WiFi Throughput with DD-WRT based router

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What steps will reproduce the problem?
1. Connect to DD-WRT based wireless router using Aurora ICS 3.0 Beta2 
(Including and excluding updates )

What is the expected output? What do you see instead?

Expect WiFi to connect and work as expected. WiFi connects, but no throughput.

No apparent issues with access points NOT running DD-WRT

What version of the product are you using? On what operating system?

Huawei X5 U8800 Aurora ICS 3.0 Beta2 Update 1b

Please provide any additional information below.

Tested connecting to 2x APs running DD-WRT. Connecting and getting IP via DHCP 
with no problem, but not throughput. Tested and working as expected for non 
DD-WRT based routers.

Device has no issues using the same DD-WRT on stock Gingerbread

Original issue reported on code.google.com by a...@adamjobbins.com on 7 May 2012 at 11:42

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I have the same problem aurora 3.1 with the wifi not connecting to my router

Original comment by syberp...@gmail.com on 17 May 2012 at 8:11

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[deleted comment]

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Just installed 3.1 right now and same issue. Have tried all the updates since 
3.0 Beta2 and had the same issue.

Have not tried any versions prior to this 

Original comment by a...@adamjobbins.com on 17 May 2012 at 8:13

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Just tried installing version 2.11a to test. WiFi work fine on that version

Original comment by a...@adamjobbins.com on 17 May 2012 at 8:44

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I got same bug after updating to Aurora 3.0 beta, but got it working by 
changing WiFi channel. Seems like it's not handling all channels correctly.

Original comment by mjvaisa...@gmail.com on 18 May 2012 at 5:14

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Tried changing channels (From 11 to 4) on the router. Issue remains

Tried permissions fix from CWM. Issue remains

Original comment by a...@adamjobbins.com on 19 May 2012 at 3:29

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Yeah, i noticed that it wasn't yet stable after channel change although it 
helped for a moment. So, i did a bit more research and noticed that by changing 
mode to g (from g+n) i got stable connection. 

Original comment by mjvaisa...@gmail.com on 19 May 2012 at 5:34

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Confirmed the same. Switched my router to B+G only (No N) and connection works 
fine.

As it turns out, the routers I was testing that it did work were all BG, and 
DD-WRT routers were N

Original comment by a...@adamjobbins.com on 19 May 2012 at 9:36

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Same probem with OpenWRT
Also on 3.01u5, also with another wpa_supplicant.

Original comment by Oliynyk....@gmail.com on 2 Jun 2012 at 11:00