Problems with wireless

tommis · 2011-11-16 18:06:12

Hello. I have Acer Aspire 5810T(Z) with wireless Intel Centrino Wireless-N 1000 card witch uses iwlagn driver. When i try to connect my wireless home network with WPA-PSK encryption the packet loss is usually around 99%, meaning i have few times been able to ping other computers on my network and load a one tenth of an webpage. This problem has persisted ever since i started using arch. The card sees all the networks in the area and gives apropiate signal strength on all of them. Also it refuses to wake up when i have stopped the wireless and i try to re-enable. I have some time ago tried wicd but it had same problems too.

Thank you for all your help.

addy · 2011-11-17 08:53:30

provide all the commands to produce the problem, and check if your card needs firmware?

tommis · 2011-11-17 13:46:41

addy wrote:

provide all the commands to produce the problem,

I use gui to connect to internet. I've red the wiki but i've had no luck when i have tried the instructions.

addy wrote:

and check if your card needs firmware?

As far as i know it doesn't, although i've installed linux-firmware package. http://intellinuxwireless.org/ says that i should have kernel 2.6.30 and up to it to be supported.

lifeafter2am · 2011-11-17 14:00:07

tommis wrote:

addy wrote:
provide all the commands to produce the problem,
I use gui to connect to internet. I've red the wiki but i've had no luck when i have tried the instructions.
addy wrote:
and check if your card needs firmware?
As far as i know it doesn't, although i've installed linux-firmware package. http://intellinuxwireless.org/ says that i should have kernel 2.6.30 and up to it to be supported.

How exactly do you connect to the internet? Saying the gui is meaningless when there are multiple gui clients that one could use.

Post the output of dmesg as well, might be a clue in there. Also might want to look at the output from iwconfig.

eberan · 2011-11-17 18:38:24

I have an Acer 1830T and replace the brcm wlan with an Intel 6320 wlan card and had the same issues. The solution I found, for at least the packet loss was to disable power management for the wlan device (ie, full power all the time). It's worth a shot at least.

Last edited by eberan (2011-11-17 18:41:08)

tommis · 2011-11-17 20:01:28

lifeafter2am wrote:

How exactly do you connect to the internet?

Via ethernet cable.

lifeafter2am wrote:

Saying the gui is meaningless

I thought i wrote plasmoid but apparently i didn't. I use kdeplasma-applets-networkmanagement.

lifeafter2am wrote:

dmesg

[ 12.240690] iwlagn 0000:02:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[ 12.240701] iwlagn 0000:02:00.0: setting latency timer to 64
[ 12.240741] iwlagn 0000:02:00.0: pci_resource_len = 0x00002000
[ 12.240745] iwlagn 0000:02:00.0: pci_resource_base = f97f8000
[ 12.240749] iwlagn 0000:02:00.0: HW Revision ID = 0x0
[ 12.240835] iwlagn 0000:02:00.0: irq 45 for MSI/MSI-X
[ 12.240880] iwlagn 0000:02:00.0: Detected Intel(R) Centrino(R) Wireless-N 1000 BGN, REV=0x6C
[ 12.240947] iwlagn 0000:02:00.0: L1 Enabled; Disabling L0S
[ 12.262480] iwlagn 0000:02:00.0: device EEPROM VER=0x15d, CALIB=0x6
[ 12.262485] iwlagn 0000:02:00.0: Device SKU: 0X50
[ 12.262488] iwlagn 0000:02:00.0: Valid Tx ant: 0X1, Valid Rx ant: 0X3
[ 12.262503] iwlagn 0000:02:00.0: Tunable channels: 13 802.11bg, 0 802.11a channels
[ 12.330748] iwlagn 0000:02:00.0: loaded firmware version 39.31.5.1 build 35138
[ 24.007965] iwlagn 0000:02:00.0: L1 Enabled; Disabling L0S
[ 24.065634] iwlagn 0000:02:00.0: L1 Enabled; Disabling L0S

lifeafter2am wrote:

iwconfig.

lo no wireless extensions.

eth0 no wireless extensions.

wlan0 IEEE 802.11bgn ESSID:"ElisaKoti13"
Mode:Managed Frequency:2.467 GHz Access Point: 00:0C:C3:7D:C6:E0
Bit Rate=13 Mb/s Tx-Power=14 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=62/70 Signal level=-48 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:18 Missed beacon:0

eberan wrote:

I have an Acer 1830T and replace the brcm wlan with an Intel 6320 wlan card and had the same issues. The solution I found, for at least the packet loss was to disable power management for the wlan device (ie, full power all the time). It's worth a shot at least.

This is worth a shot. I did not find howto disable power management, how did you do it? Also i found out while the card is not connected to network it says it is managed, while it is it says the management is off.

Iwconfig while not connected:
lo no wireless extensions.

eth0 no wireless extensions.

wlan0 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=14 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off

lifeafter2am · 2011-11-17 20:37:28

tommis wrote:

This is worth a shot. I did not find howto disable power management, how did you do it? A

Check out the iwconfig man page: http://linux.die.net/man/8/iwconfig

Arch Linux

#1 2011-11-16 18:06:12

Problems with wireless

#2 2011-11-17 08:53:30

Re: Problems with wireless

#3 2011-11-17 13:46:41

Re: Problems with wireless

#4 2011-11-17 14:00:07

Re: Problems with wireless

#5 2011-11-17 18:38:24

Re: Problems with wireless

#6 2011-11-17 20:01:28

Re: Problems with wireless

#7 2011-11-17 20:37:28

Re: Problems with wireless

Board footer