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[sawbona <sawbona@xxxxxxxxxxxxx>]

Hello:

I am running 12.10 LTS and have the same/similar problem.

Connects at boot, remaining strong and stable but after a while, the
connection will drop and the system will try to connect again.

This does not happen and after a while, although configured to connect
automatically, the pop-up asking to connect (fields are not blank) comes
up but connection does not happen and the pop-up comes up once again
after a while.

Unplugging and replugging the USB dongle has the effect of freezing the
system which requires a hard reset as ctrl-alt-del will not do. Another
symptom when system freezes is that kb leds flash on and off repeatedly.

***

-- lsusb (snip)
Bus 001 Device 002: ID 0cf3:7015 Atheros Communications, Inc. TP-Link TL-WN821N v3 802.11n [Atheros AR7010+AR9287]

***

Curiously enough, the hardware data on the label is 'TL-WN822N V2', which apparently has a different chipset.
I have seen this reported elsewhere.

--

modinfo ath9k_usb
ERROR: modinfo: could not find module ath9k_usb

modinfo ath9k_ath
ERROR: modinfo: could not find module ath9k_ath

modinfo ath9k

filename:         /lib/modules/3.2.0-53-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k.ko
license:            Dual BSD/GPL
description:    Support for Atheros 802.11n wireless LAN cards.
author:            Atheros Communications
srcversion:      426E3BAA91A2633D95E6FD2
alias:          platform:ar934x_wmac
alias:          platform:ar933x_wmac
alias:          platform:ath9k
alias:          pci:v0000168Cd00000037sv*sd*bc*sc*i*
alias:          pci:v0000168Cd00000034sv*sd*bc*sc*i*
alias:          pci:v0000168Cd00000033sv*sd*bc*sc*i*
alias:          pci:v0000168Cd00000032sv*sd*bc*sc*i*
alias:          pci:v0000168Cd00000030sv*sd*bc*sc*i*
alias:          pci:v0000168Cd0000002Esv*sd*bc*sc*i*
alias:          pci:v0000168Cd0000002Dsv*sd*bc*sc*i*
alias:          pci:v0000168Cd0000002Csv*sd*bc*sc*i*
alias:          pci:v0000168Cd0000002Bsv*sd*bc*sc*i*
alias:          pci:v0000168Cd0000002Asv*sd*bc*sc*i*
alias:          pci:v0000168Cd00000029sv*sd*bc*sc*i*
alias:          pci:v0000168Cd00000027sv*sd*bc*sc*i*
alias:          pci:v0000168Cd00000024sv*sd*bc*sc*i*
alias:          pci:v0000168Cd00000023sv*sd*bc*sc*i*
depends:  ath9k_hw,ath9k_common,mac80211,cfg80211,ath
intree:      Y
vermagic: 3.2.0-53-generic SMP mod_unload modversions 686 
parm:        debug:Debugging mask (uint)
parm:        nohwcrypt:Disable hardware encryption (int)
parm:        blink:Enable LED blink on activity (int)
parm:        btcoex_enable:Enable wifi-BT coexistence (int)

***

iwconfig

lo        no wireless extensions.

wlan1     IEEE 802.11bgn  ESSID:"XXXXXX"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: 1C:AF:F7:17:2A:4C   
          Bit Rate=65 Mb/s   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=49/70  Signal level=-61 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
 -         Tx excessive retries:0  Invalid misc:1   Missed beacon:0

eth0      no wireless extensions.20 days)

***

I see this bug was confirmed as being of high imprtance almost year ago
(in ~20 days).

Are there any news as to what progress has been made, if any?
After all, it does seem to be a kernel issue.

Thanks in advance,

CIV

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1049383

Title:
  ath9k_usb: TL-WN821N v3 (AR7010+9287) Connection drops

Status in The Linux Kernel:
  Confirmed
Status in “linux” package in Ubuntu:
  Triaged

Bug description:
  Hi. The connection with this device is fast and stable, but seems to
  drop after a certain amount of data has been transmitted. The easiest
  way to reproduce it is to download something large. I can always
  reproduce it by downloading a torrent. After about 300-400MB, it seems
  like the wireless dongle hangs and the connection doesn't work
  anymore.

  At this point, network commands such as iwconfig freeze, and it's also
  impossible to reboot or turn off the computer. However, if the
  wireless dongle is unplugged and plugged again, everything's back to
  normal.

  The module is set with nohwcrypt=1. If this option is not set, the
  connection drops much faster. Also, I've noticed that the latency is
  lower with nohwcrypt=1 (using speedtest.net, the latency without
  hardware encryption is consistently 3 times less).

  Description:    Ubuntu 12.04.1 LTS
  Release:        12.04

  linux-generic:
    Installed: 3.2.0.30.32
    Candidate: 3.2.0.30.32
    Version table:
   *** 3.2.0.30.32 0
          500 http://es.archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages
          100 /var/lib/dpkg/status
       3.2.0.29.31 0
          500 http://security.ubuntu.com/ubuntu/ precise-security/main amd64 Packages
       3.2.0.23.25 0
          500 http://es.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages

  *******Results of lsusb:
  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
  Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
  Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
  Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
  Bus 005 Device 002: ID 046d:c00e Logitech, Inc. M-BJ58/M-BJ69 Optical Wheel Mouse
  Bus 002 Device 004: ID 0cf3:7015 Atheros Communications, Inc. TP-Link TL-WN821N v3 802.11n [Atheros AR7010+AR9287]

  ******* Results for modinfo ath9k_usb:
  filename:       /lib/modules/3.2.0-30-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k_htc.ko
  firmware:       htc_9271.fw
  firmware:       htc_7010.fw
  description:    Atheros driver 802.11n HTC based wireless devices
  license:        Dual BSD/GPL
  author:         Atheros Communications
  srcversion:     9B885B82530A1FF8F15C062
  alias:          usb:v0CF3p20FFd*dc*dsc*dp*ic*isc*ip*
  alias:          usb:v0411p017Fd*dc*dsc*dp*ic*isc*ip*
  alias:          usb:v083ApA704d*dc*dsc*dp*ic*isc*ip*
  alias:          usb:v0846p9018d*dc*dsc*dp*ic*isc*ip*
  alias:          usb:v0CF3p7010d*dc*dsc*dp*ic*isc*ip*
  alias:          usb:v1668p1200d*dc*dsc*dp*ic*isc*ip*
  alias:          usb:v0CF3p7015d*dc*dsc*dp*ic*isc*ip*
  alias:          usb:v057Cp8403d*dc*dsc*dp*ic*isc*ip*
  alias:          usb:v0CF3pB003d*dc*dsc*dp*ic*isc*ip*
  alias:          usb:v040Dp3801d*dc*dsc*dp*ic*isc*ip*
  alias:          usb:v04CAp4605d*dc*dsc*dp*ic*isc*ip*
  alias:          usb:v13D3p3350d*dc*dsc*dp*ic*isc*ip*
  alias:          usb:v13D3p3349d*dc*dsc*dp*ic*isc*ip*
  alias:          usb:v13D3p3348d*dc*dsc*dp*ic*isc*ip*
  alias:          usb:v13D3p3346d*dc*dsc*dp*ic*isc*ip*
  alias:          usb:v13D3p3328d*dc*dsc*dp*ic*isc*ip*
  alias:          usb:v13D3p3327d*dc*dsc*dp*ic*isc*ip*
  alias:          usb:v07D1p3A10d*dc*dsc*dp*ic*isc*ip*
  alias:          usb:v0846p9030d*dc*dsc*dp*ic*isc*ip*
  alias:          usb:v0CF3p1006d*dc*dsc*dp*ic*isc*ip*
  alias:          usb:v0CF3p9271d*dc*dsc*dp*ic*isc*ip*
  depends:        ath9k_hw,ath9k_common,mac80211,ath,cfg80211
  intree:         Y
  vermagic:       3.2.0-30-generic SMP mod_unload modversions 
  parm:           debug:Debugging mask (uint)
  parm:           nohwcrypt:Disable hardware encryption (int)

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