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Poor WiFi Performance



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Hi everybody!
I've recently switched from Ubuntu to Fedora 10 to escape a nasty
problem I'm having but without luck.
I have a DELL Inspiron 640m / e1405 notebook based on a Centrino
chipset with an Intel 3945abg WiFi card and my network connection is
painfully slow. I have a 16MBit/s ADSL connection (according to the
router 14069 kbit/s down and 1189 kbit/s up) and when trying a speed
test I get the following results with Epiphany on Fedora 10:
Down: 200 - 250 kbit/s
Up: 60-80 kbit/s

With Internet Explorer 7 on Windows I get the following:
Down: 7500 - 9700 kbit/s
Up: ~1100 kbit/s

I tried it 3 times on both OS's and within about 10 minutes. The
results from my Fedora tests are way better than expected, because it
sometimes takes up to 5 minutes to open google...

The WiFi network I'm connected to is a WPA encrypted G network with
the AP about 5 meters away from my notebook.

I already did some googling but so far I haven't sound anything that
helped. I even tried the Windows drivers using ndsiwrapper but I
couldnt get them to load properly.

The following is the output from lspci:

[root hekate ~]# lspci
00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML
and 945GT Express Memory Controller Hub (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS,
943/940GML Express Integrated Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME,
943/940GML Express Integrated Graphics Controller (rev 03)
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High
Definition Audio Controller (rev 01)
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express
Port 1 (rev 01)
00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express
Port 2 (rev 01)
00:1c.3 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express
Port 4 (rev 01)
00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB
UHCI Controller #1 (rev 01)
00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB
UHCI Controller #2 (rev 01)
00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB
UHCI Controller #3 (rev 01)
00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB
UHCI Controller #4 (rev 01)
00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2
EHCI Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e1)
00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface
Bridge (rev 01)
00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family)
SATA IDE Controller (rev 01)
00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 01)
02:00.0 Ethernet controller: Broadcom Corporation BCM4401-B0 100Base-TX (rev 02)
02:01.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller
02:01.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro
Host Adapter (rev 19)
02:01.2 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host
Adapter (rev 0a)
02:01.3 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 05)
0c:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG
Network Connection (rev 02)
[root hekate ~]#



I would greatly appreciate any help you can give me!

Thanks in advance

Phil Bieber
- --
Monday is an awful way to spend 1/7th of your life.

Atheism is a non-prophet organization.

GPG KEY ID (Philipp Bieber): 0x0185E301
FINGERPRINT: CA81 28C2 E63F DAF8 5ED4 DACB 7C26 EE5B 0185 E301
Philipp Bieber - philbieber gmail com

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