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[Bug 1040943] Re: Wireless -very- frequent disconnects in LinuxMint13 - Atheros AR9462

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Douglas Humphris <douglas@xxxxxxxxxxxx>
Date: Fri, 19 Jul 2013 09:42:00 -0000
Reply-to: Bug 1040943 <1040943@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Same issues with Dell XPS13, Ubuntu 13.04

Wireless drops very frequently and can only be re-established with
reboot. I see this in my syslog:

Jul 19 09:34:52 L322X kernel: [  188.499846] iwlwifi 0000:01:00.0: fail to flush all tx fifo queues
Jul 19 09:34:54 L322X kernel: [  190.500268] iwlwifi 0000:01:00.0: Error sending REPLY_ADD_STA: time out after 2000ms.
Jul 19 09:34:54 L322X kernel: [  190.500282] iwlwifi 0000:01:00.0: Current CMD queue read_ptr 43 write_ptr 44
Jul 19 09:34:54 L322X kernel: [  190.500293] wlan0: failed to remove key (0, c4:3d:c7:44:2c:9c) from hardware (-110)
Jul 19 09:34:56 L322X kernel: [  192.496891] iwlwifi 0000:01:00.0: Error sending REPLY_QOS_PARAM: time out after 2000ms.
Jul 19 09:34:56 L322X kernel: [  192.496906] iwlwifi 0000:01:00.0: Current CMD queue read_ptr 43 write_ptr 45
Jul 19 09:34:56 L322X kernel: [  192.496913] iwlwifi 0000:01:00.0: Failed to update QoS
Jul 19 09:34:58 L322X wpa_supplicant[1506]: wlan0: CTRL-EVENT-DISCONNECTED bssid=c4:3d:c7:44:2c:9c reason=4
Jul 19 09:34:58 L322X kernel: [  194.493076] iwlwifi 0000:01:00.0: Error sending REPLY_RXON: time out after 2000ms.
Jul 19 09:34:58 L322X kernel: [  194.493089] iwlwifi 0000:01:00.0: Current CMD queue read_ptr 43 write_ptr 46
Jul 19 09:34:58 L322X kernel: [  194.493096] iwlwifi 0000:01:00.0: Error clearing ASSOC_MSK on BSS (-110)
Jul 19 09:35:00 L322X kernel: [  196.493551] iwlwifi 0000:01:00.0: Error sending REPLY_ADD_STA: time out after 2000ms.
Jul 19 09:35:00 L322X kernel: [  196.493566] iwlwifi 0000:01:00.0: Current CMD queue read_ptr 43 write_ptr 47
Jul 19 09:35:00 L322X kernel: [  196.493577] wlan0: failed to remove key (1, ff:ff:ff:ff:ff:ff) from hardware (-110)
Jul 19 09:35:00 L322X kernel: [  196.493881] cfg80211: Calling CRDA to update world regulatory domain
Jul 19 09:35:02 L322X kernel: [  198.489946] iwlwifi 0000:01:00.0: Error sending REPLY_RXON: time out after 2000ms.
Jul 19 09:35:02 L322X kernel: [  198.489960] iwlwifi 0000:01:00.0: Current CMD queue read_ptr 43 write_ptr 48
Jul 19 09:35:02 L322X kernel: [  198.489968] iwlwifi 0000:01:00.0: Error clearing ASSOC_MSK on BSS (-110)
Jul 19 09:35:04 L322X kernel: [  200.494382] iwlwifi 0000:01:00.0: fail to flush all tx fifo queues
Jul 19 09:35:06 L322X kernel: [  202.490782] iwlwifi 0000:01:00.0: Error sending POWER_TABLE_CMD: time out after 2000ms.
Jul 19 09:35:06 L322X kernel: [  202.490797] iwlwifi 0000:01:00.0: Current CMD queue read_ptr 43 write_ptr 49
Jul 19 09:35:06 L322X kernel: [  202.490807] iwlwifi 0000:01:00.0: set power fail, ret = -110
Jul 19 09:35:08 L322X kernel: [  204.487216] iwlwifi 0000:01:00.0: Error sending REPLY_RXON: time out after 2000ms.
Jul 19 09:35:08 L322X kernel: [  204.487230] iwlwifi 0000:01:00.0: Current CMD queue read_ptr 43 write_ptr 50
Jul 19 09:35:08 L322X kernel: [  204.487238] iwlwifi 0000:01:00.0: Error clearing ASSOC_MSK on BSS (-110)
Jul 19 09:35:10 L322X wpa_supplicant[1506]: wlan0: Failed to initiate AP scan
Jul 19 09:35:10 L322X NetworkManager[1016]: <info> (wlan0): roamed from BSSID C4:3D:C7:44:2C:9C (MySSID) to (none) ((none))
Jul 19 09:35:10 L322X NetworkManager[1016]: <info> (wlan0): supplicant interface state: completed -> disconnected
Jul 19 09:35:10 L322X kernel: [  206.483633] iwlwifi 0000:01:00.0: Error sending REPLY_SCAN_CMD: time out after 2000ms.
Jul 19 09:35:10 L322X kernel: [  206.483646] iwlwifi 0000:01:00.0: Current CMD queue read_ptr 43 write_ptr 51
Jul 19 09:35:10 L322X kernel: [  206.484335] cfg80211: World regulatory domain updated:
Jul 19 09:35:10 L322X kernel: [  206.484356] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
Jul 19 09:35:10 L322X kernel: [  206.484370] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Jul 19 09:35:10 L322X kernel: [  206.484387] cfg80211:   (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
Jul 19 09:35:10 L322X kernel: [  206.484397] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
Jul 19 09:35:10 L322X kernel: [  206.484407] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Jul 19 09:35:10 L322X kernel: [  206.484417] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Jul 19 09:35:13 L322X wpa_supplicant[1506]: wlan0: Failed to initiate AP scan
Jul 19 09:35:13 L322X kernel: [  209.478218] iwlwifi 0000:01:00.0: Error sending REPLY_SCAN_CMD: time out after 2000ms.
Jul 19 09:35:13 L322X kernel: [  209.478231] iwlwifi 0000:01:00.0: Current CMD queue read_ptr 43 write_ptr 52
Jul 19 09:35:16 L322X wpa_supplicant[1506]: wlan0: Failed to initiate AP scan
Jul 19 09:35:16 L322X kernel: [  212.472836] iwlwifi 0000:01:00.0: Error sending REPLY_SCAN_CMD: time out after 2000ms.
Jul 19 09:35:16 L322X kernel: [  212.472850] iwlwifi 0000:01:00.0: Current CMD queue read_ptr 43 write_ptr 53
Jul 19 09:35:19 L322X wpa_supplicant[1506]: wlan0: Failed to initiate AP scan
Jul 19 09:35:19 L322X kernel: [  215.467474] iwlwifi 0000:01:00.0: Error sending REPLY_SCAN_CMD: time out after 2000ms.
Jul 19 09:35:19 L322X kernel: [  215.467491] iwlwifi 0000:01:00.0: Current CMD queue read_ptr 43 write_ptr 54
Jul 19 09:35:22 L322X wpa_supplicant[1506]: wlan0: Failed to initiate AP scan
Jul 19 09:35:22 L322X kernel: [  218.462158] iwlwifi 0000:01:00.0: Error sending REPLY_SCAN_CMD: time out after 2000ms.
Jul 19 09:35:22 L322X kernel: [  218.462172] iwlwifi 0000:01:00.0: Current CMD queue read_ptr 43 write_ptr 55
Jul 19 09:35:25 L322X wpa_supplicant[1506]: wlan0: Failed to initiate AP scan
Jul 19 09:35:25 L322X kernel: [  221.456800] iwlwifi 0000:01:00.0: Error sending REPLY_SCAN_CMD: time out after 2000ms.
Jul 19 09:35:25 L322X kernel: [  221.456815] iwlwifi 0000:01:00.0: Current CMD queue read_ptr 43 write_ptr 56
Jul 19 09:35:25 L322X NetworkManager[1016]: <warn> (wlan0): link timed out.
Jul 19 09:35:25 L322X NetworkManager[1016]: <info> (wlan0): device state change: activated -> failed (reason 'SSID not found') [100 120 53]
Jul 19 09:35:25 L322X NetworkManager[1016]: <warn> Activation (wlan0) failed for connection 'dshumphris'
Jul 19 09:35:25 L322X dbus[647]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper)
Jul 19 09:35:25 L322X NetworkManager[1016]: <info> (wlan0): device state change: failed -> disconnected (reason 'none') [120 30 0]
Jul 19 09:35:25 L322X NetworkManager[1016]: <info> (wlan0): deactivating device (reason 'none') [0]
Jul 19 09:35:25 L322X dbus[647]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Jul 19 09:35:25 L322X NetworkManager[1016]: <info> (wlan0): canceled DHCP transaction, DHCP client pid 2112
Jul 19 09:35:25 L322X avahi-daemon[683]: Withdrawing address record for fe80::b6b6:76ff:fe33:bd23 on wlan0.
Jul 19 09:35:25 L322X avahi-daemon[683]: Leaving mDNS multicast group on interface wlan0.IPv6 with address fe80::b6b6:76ff:fe33:bd23.
Jul 19 09:35:25 L322X avahi-daemon[683]: Interface wlan0.IPv6 no longer relevant for mDNS.
Jul 19 09:35:25 L322X avahi-daemon[683]: Withdrawing address record for 192.168.0.5 on wlan0.
Jul 19 09:35:25 L322X avahi-daemon[683]: Leaving mDNS multicast group on interface wlan0.IPv4 with address 192.168.0.5.
Jul 19 09:35:25 L322X kernel: [  221.844278] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Jul 19 09:35:25 L322X avahi-daemon[683]: Interface wlan0.IPv4 no longer relevant for mDNS.
Jul 19 09:35:25 L322X NetworkManager[1016]: <warn> DNS: plugin dnsmasq update failed
Jul 19 09:35:25 L322X NetworkManager[1016]: <info> Removing DNS information from /sbin/resolvconf
Jul 19 09:35:25 L322X dnsmasq[2121]: setting upstream servers from DBus
Jul 19 09:35:27 L322X kernel: [  223.864391] iwlwifi 0000:01:00.0: Error sending REPLY_SCAN_CMD: time out after 2000ms.
Jul 19 09:35:27 L322X kernel: [  223.864403] iwlwifi 0000:01:00.0: Current CMD queue read_ptr 43 write_ptr 57
Jul 19 09:35:27 L322X NetworkManager[1016]: <info> (wlan0): supplicant interface state: disconnected -> inactive
Jul 19 09:35:28 L322X nm-dispatcher.action: Script '/etc/NetworkManager/dispatcher.d/01ifupdown' took too long; killing it.
Jul 19 09:35:28 L322X NetworkManager[1016]: <warn> Dispatcher script timed out: Script '/etc/NetworkManager/dispatcher.d/01ifupdown' timed out.
Jul 19 09:35:30 L322X kernel: [  226.615566] iwlwifi 0000:01:00.0: Error sending REPLY_SCAN_CMD: time out after 2000ms.
Jul 19 09:35:30 L322X kernel: [  226.615578] iwlwifi 0000:01:00.0: Current CMD queue read_ptr 43 write_ptr 58

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https://bugs.launchpad.net/bugs/1040943

Title:
  Wireless -very- frequent disconnects in LinuxMint13 - Atheros AR9462

Status in The Linux Mint Distribution:
  New
Status in “linux” package in Ubuntu:
  Confirmed
Status in Debian GNU/Linux:
  New

Bug description:
  Wireless Connection disconnects very frequently, almost about every 15 minutes.
  In some cases (more often) the network manager indicate tha i am connected, in other cases clearly disconnects and occasionaly cannot connect (like i have disabled the wireless) an i restart the hardware (wireless card button) to start again.

  My system is Aspire One 765 with Linux Mint 13 kde.
  My wireless card is Atheros AR9462.

  - Atheros Communications Inc. AR9462 Wireless Network Adapter (rev 01)
  -iwconfig:
  wlan0     IEEE 802.11abgn  ESSID:"**********"  
            Mode:Managed  Frequency:2.437 GHz  Access Point: ************* 
            Bit Rate=54 Mb/s   Tx-Power=19 dBm   
            Retry  long limit:7   RTS thr:off   Fragment thr:off
            Power Management:on
            Link Quality=57/70  Signal level=-53 dBm  
            Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
            Tx excessive retries:20152  Invalid misc:4984   Missed beacon:0

  -inxi -N:
  Atheros AR9462 Wireless Network Adapter driver: ath9k

  I've tried as been sugested by some forum threads to run the nohwcrypt option:
  sudo modprobe -v ath9k nohwcrypt=1
  and to make a file in /etc/modprobe.d/ath9k.conf with "options ath9k nohwcrypt" 
  but... nothing.

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