Thread: 11.04 Atheros AR928X Network Issues with WEP Key

howdy howdy,

i've been having issues wireless connection ever since upgrading 11.04. intermittently, after few hours, within few minutes, after starting laptop connection drop , attempt reconnect. after minute or prompt me wireless key, try reconnect again, fail, , mark disconnected. months solution problem restart.

noticed when occurred, when ran iwconfig key displayed did not match normal key. longer , characters different. nonetheless, same wrong key every time connection dropped.
use 64 bit key, after thought realized displayed 128 bit key. after testing realized 'wrong' 128 bit key being generated using 64 bit key passphrase. reason, intermittently, ubuntu treating 64 bit key 128 bit passphrase, generating new key, , applying it. if issue command through iwconfig revert key correct, 64bit key, connection re-establishes itself.

i'll try , provide information possible.

here's working config:

code:

user@cr48-ubuntu:~/downloads$ sudo iwconfig wlan0  wlan0     ieee 802.11abgn  essid:"<essid>"              mode:managed  frequency:2.412 ghz  access point: 00:1c:10:3b:ff:ff               bit rate=24 mb/s   tx-power=20 dbm               retry  long limit:7   rts thr:off   fragment thr:off            encryption key:51fb-c096-53            power management:on            link quality=38/70  signal level=-72 dbm              rx invalid nwid:0  rx invalid crypt:0  rx invalid frag:0            tx excessive retries:0  invalid misc:0   missed beacon:0

here's broken config:

code:

user@cr48-ubuntu:~/downloads$ sudo iwconfig wlan0  wlan0     ieee 802.11abgn  essid:"<essid>"              mode:managed  frequency:2.412 ghz  access point: 00:1c:10:3b:ff:ff             bit rate=24 mb/s   tx-power=20 dbm               retry  long limit:7   rts thr:off   fragment thr:off            encryption key:7f24-20fa-9d5d-67cf-c967-97e3-22            power management:on            link quality=38/70  signal level=-72 dbm              rx invalid nwid:0  rx invalid crypt:0  rx invalid frag:0            tx excessive retries:0  invalid misc:0   missed beacon:0

running on google cr-48 laptop.

aaaaaaand helpful informations:

code:

user@cr48-ubuntu:~/downloads$ lspci | grep atheros  01:00.0 network controller: atheros communications inc. ar928x wireless network adapter (pci-express) (rev 01)      user@cr48-ubuntu:~/downloads$ lsusb | grep atheros  bus 005 device 004: id 0cf3:3005 atheros communications, inc.       user@cr48-ubuntu:~/downloads$ lspci -nn | grep atheros  01:00.0 network controller [0280]: atheros communications inc. ar928x wireless network adapter (pci-express) [168c:002a] (rev 01)      user@cr48-ubuntu:~/downloads$ sudo lshw -c network    *-network                        description: wireless interface         product: ar928x wireless network adapter (pci-express)         vendor: atheros communications inc.         physical id: 0         bus info: pci@0000:01:00.0         logical name: wlan0         version: 01         serial: 48:5d:60:76:ac:8d         width: 64 bits         clock: 33mhz         capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical wireless         configuration: broadcast=yes driver=ath9k driverversion=2.6.32.23+drm33.10 firmware=n/a ip=192.168.2.103 latency=0 link=yes multicast=yes wireless=ieee 802.11abgn         resources: irq:16 memory:91000000-9100ffff    user@cr48-ubuntu:~/downloads$ uname -mr  2.6.32.23+drm33.10 i686

you might try:

code:

sudo ifconfig wlan0 down  sudo rmmod -f ath9k  sudo modprobe ath9k nohwcrypt=1  sudo ifconfig wlan0 up

if helps, can write file , make persistent.

when think have heard everything...

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