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masterl1nk

Member

From: Buenos Aires, Argentina

Registered: 2011-03-21

Posts: 7

Website

Very slow Wifi connection with WPA/WPA2 networks

Hi,
I have a MSI U230 laptop with a Ralink RT3090 wireless card w/bluetooth.

About few weeks I noticed the very slow speeed of my internet connection using WPA or WPA2 networks.

With a 6MB connection and WEP or ethernet networks I download about 650~700kb/s, with WPA or WPA2 my speed rate is around 40kb/s, sometimes I get around 100kb/s.

I'm using the RT2800pci module acording the arch wiki.

I tried to connect via WICD and wpa_supplicant/wpa_passpharse with no improvments

Some useful info:

nico@u230:~$ uname -a
Linux u230 3.0-ARCH #1 SMP PREEMPT Fri Oct 7 10:11:05 UTC 2011 i686 AMD Athlon(tm) Neo X2 Dual Core Processor L335 AuthenticAMD GNU/Linux

nico@u230:~$ lspci | grep  Ralink
02:00.0 Network controller: Ralink corp. RT3090 Wireless 802.11n 1T/1R PCIe

nico@u230:~$ cat /etc/modprobe.d/blacklist.conf 
blacklist rt2x00lib
blacklist rt61pci
#blacklist rt2800pci
blacklist rt2x00usb
blacklist rt2x00pci
blacklist rt3390sta
blacklist rt2800usb
blacklist rt2860sta

rc.conf modules:

MODULES=(rt2800pci vboxdrv powernow-k8 uvcvideo)

Sorry for my english

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Thalskarth

Member

Registered: 2008-12-02

Posts: 37

Re: Very slow Wifi connection with WPA/WPA2 networks

Same problem with my Asus eeepc. Any help?

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English is not my native lenguage

t1nk3r3r

Member

From: The Pacific Northwest

Registered: 2011-03-22

Posts: 79

Re: Very slow Wifi connection with WPA/WPA2 networks

Shooting in the dark:
- Has been configured with 'iwpriv' as suggested in the wiki?
- Newer driver available? (Can't think how to easily check...)
- Power-saving turned off (via 'iwconfig')?
- Compare signal quality/txpower (via 'iwconfig') between WEP and WPA

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--------------------------The only wasted day is one in which you learn nothing.--------------------------