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Author Topic: very low speed with dir655 and dwa-125  (Read 6396 times)

sohai

  • Level 1 Member
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  • Posts: 2
very low speed with dir655 and dwa-125
« on: June 13, 2010, 07:09:46 AM »

Hi everyone, hope you can help me on this.

I got a dir655 and previously used a belkin wireless adapter, but i was not happy with the speed and it was a G only adapter so i went and bought a dwa-125, thinking that i would be able to get nice N speed and since both router and adapter are d-link product i expected everything would just work.

Unfortunately the first time i hooked up the dwa-125 i only see a max speed of 64mbps which is not much better than my previous belkin adapter, so i went to the configuration page and changed the channel width from 20 mhz to 20/40 auto, and voila....135mbps (note that i'm using g and n mixed mode). I was happy for a moment.

But then i noticed something very weird, when i start transferring files, the speed will drop to a ridiculous 13 or 5 mbps, and even when i am not transferring sometimes i could see it dropped to this speed. This is even worse than my previous wireless adapter. Note that my sister's laptop (which i guess is using some intel wireless) can get very good signal and constant 130mbps speed before and after i changed to 20/40mhz mode. The signal strength is also stronger with her laptop. I feel disappointed.

Here is my configuration of the router:
Firmware Version : 1.30WW,  2009/07/10

802.11 Mode :Mixed n and g
Enable Auto Channel Scan : yes
Wireless Channel : 2.437ghz -CH6
Transmission Rate : best (automatic)
Channel Width :auto 20/40Mhz

security mode:wpa personal
wpa mode:auto(wpa or wpa2)
cypher type:aes
Group Key Update Interval:3600

Firmware for dwa-125:DWA-125_A2_v1.31

Does anybody know what is wrong with my config? or it is simply a defect of the wireless adapter, I'm seriously not impressed by the performance.


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thecreator

  • Level 6 Member
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  • Posts: 795
Re: very low speed with dir655 and dwa-125
« Reply #1 on: June 13, 2010, 07:24:12 AM »

Hi sohai,

http://www.dlink.com/products/?pid=DIR-655&tab=3

Click on the above link. Then click Works With.

DWA-125 does not work with the D-Link DIR-655 Router.

Do the same with the DWA-125.

http://www.dlink.com/products/?pid=DWA-125&tab=3
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thecreator - Running a Verizon FIOS / Fios-G1100 Router into a D-Link DIR-859 Router Rev. A3, Firmware 1.03 and a D-Link DWA-552 Wireless Network PCI Adapter Card. OP Sys: Win 10 Pro - DNS-323 with Firmware 1.10

sohai

  • Level 1 Member
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  • Posts: 2
Re: very low speed with dir655 and dwa-125
« Reply #2 on: June 13, 2010, 07:49:46 AM »

WTF??? Sorry for the language, but seriously, this is so lame if they are not compatible. Can somebody confirm this? I mean aren't they supposed to work if they are compliant with the wifi standard? Let alone the fact that they are both dlink product? How come a belkin or intel adapter work but a dlink adapter doesn't??? It's just....unbelievable
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