Ubuntu

Atheros AR9462 wifi intermittent slowdowns and cuts

Asked by this

Hi,

My wifi adapter Atheros Qualcomm AR9462 has been having problems, dropping the connection from time to time and being generally very slow both latency-wise and bandwidth-wise.

Ubuntu is installed on hard drive, PC is an Acer VN7-591G, trying to connect to a home router (on which I tried disabling wifi n but did not help). It seems like lots of packets are being dropped. I have tried the nohwcrypt=1 option for the ath9k driver but no success. It runs fine on Windows on the same wireless network.

Here's a plot of the download speed + wifi bandwidth used when it runs extremely slowly : http://i.imgur.com/NAlyk3t.png
And the same plot when it runs slightly faster but still acts very slow : http://i.imgur.com/lSd9I9r.png

In both cases, running iwconfig gives following ranges of the following values :
Tx excessive retries:5-2000 Invalid misc:50-500

Here is the full dump of the diagnostics :
  *-network
       description: Wireless interface
       product: AR9462 Wireless Network Adapter
       vendor: Qualcomm Atheros
       physical id: 0
       bus info: pci@0000:07:00.0
       logical name: wlan0
       version: 01
       serial: 5c:93:a2:eb:ea:40
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless
       configuration: broadcast=yes driver=ath9k driverversion=3.16.0-31-generic firmware=N/A ip=192.168.0.29 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
       resources: irq:18 memory:d1600000-d167ffff memory:d1680000-d168ffff
  *-network
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:08:00.0
       logical name: eth0
       version: 0c
       serial: 20:6a:8a:a0:49:0c
       size: 10Mbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168g-2_0.0.1 02/06/13 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:47 ioport:3000(size=256) memory:d1500000-d1500fff memory:d1400000-d1403fff
1: acer-wireless: Wireless LAN
 Soft blocked: no
 Hard blocked: no
2: hci0: Bluetooth
 Soft blocked: no
 Hard blocked: no
4: phy0: Wireless LAN
 Soft blocked: no
 Hard blocked: no
eth0 Interface doesn't support scanning.

wlan0 Interface doesn't support scanning : Device or resource busy

lo Interface doesn't support scanning.

# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.10
DISTRIB_CODENAME=utopic
DISTRIB_DESCRIPTION="Ubuntu 14.10"
07:00.0 Network controller [0280]: Qualcomm Atheros AR9462 Wireless Network Adapter [168c:0034] (rev 01)
 Subsystem: Lite-On Communications Inc Device [11ad:0802]
 Kernel driver in use: ath9k
08:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 0c)
 Subsystem: Realtek Semiconductor Co., Ltd. Device [10ec:0123]
 Kernel driver in use: r8169
Bus 002 Device 002: ID 8087:8000 Intel Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp.
Bus 001 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 003 Device 004: ID 1bcf:2c6e Sunplus Innovation Technology Inc.
Bus 003 Device 003: ID 06cb:2970 Synaptics, Inc.
Bus 003 Device 002: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 003 Device 005: ID 04ca:300d Lite-On Technology Corp.
Bus 003 Device 006: ID 046d:c041 Logitech, Inc. G5 Laser Mouse
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
RUNNING STATE WIFI-HARDWARE WIFI WWAN-HARDWARE WWAN
running connected enabled enabled enabled disabled
H/W path Device Class Description
====================================================
                          system Aspire VN7-591G (Aspire VN7-591G_091B_1.08)
/0 bus Aspire VN7-591G
/0/0 memory 128KiB BIOS
/0/4 processor Intel(R) Core(TM) i7-4710HQ CPU @ 2.50GHz
/0/4/6 memory 32KiB L1 cache
/0/4/7 memory 256KiB L2 cache
/0/4/8 memory 6MiB L3 cache
/0/5 memory 32KiB L1 cache
/0/d memory 8GiB System Memory
/0/d/0 memory 8GiB SODIMM DDR3 Synchronous 1600 MHz (0.6 ns)
/0/d/1 memory DIMM [empty]
/0/d/2 memory DIMM [empty]
/0/d/3 memory DIMM [empty]
/0/100 bridge Xeon E3-1200 v3/4th Gen Core Processor DRAM Controller
/0/100/1 bridge Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller
/0/100/1/0 generic Illegal Vendor ID
/0/100/2 display 4th Gen Core Processor Integrated Graphics Controller
/0/100/3 multimedia Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller
/0/100/14 bus 8 Series/C220 Series Chipset Family USB xHCI
/0/100/16 communication 8 Series/C220 Series Chipset Family MEI Controller #1
/0/100/1a bus 8 Series/C220 Series Chipset Family USB EHCI #2
/0/100/1b multimedia 8 Series/C220 Series Chipset High Definition Audio Controller
/0/100/1c bridge 8 Series/C220 Series Chipset Family PCI Express Root Port #3
/0/100/1c/0 wlan0 network AR9462 Wireless Network Adapter
/0/100/1c.3 bridge 8 Series/C220 Series Chipset Family PCI Express Root Port #4
/0/100/1c.3/0 eth0 network RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
/0/100/1d bus 8 Series/C220 Series Chipset Family USB EHCI #1
/0/100/1f bridge HM86 Express LPC Controller
/0/100/1f.2 storage 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode]
/0/100/1f.3 bus 8 Series/C220 Series Chipset Family SMBus Controller
/0/1 scsi5 storage
/0/1/0.0.0 /dev/sda disk 500GB Samsung SSD 840
/0/1/0.0.0/1 /dev/sda1 volume 599MiB Windows NTFS volume
/0/1/0.0.0/2 /dev/sda2 volume 299MiB Windows FAT volume
/0/1/0.0.0/3 /dev/sda3 volume 127MiB reserved partition
/0/1/0.0.0/4 /dev/sda4 volume 347GiB Windows NTFS volume
/0/1/0.0.0/5 /dev/sda5 volume 7811MiB Linux swap volume
/0/1/0.0.0/6 /dev/sda6 volume 27GiB EXT4 volume
/0/1/0.0.0/7 /dev/sda7 volume 81GiB EXT4 volume
Linux vil-acer 3.16.0-31-generic #41-Ubuntu SMP Tue Feb 10 15:24:04 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
[ 0.000000] AGP: No AGP bridge found
[ 0.000000] Found optimal setting for mtrr clean up
[ 0.000000] No NUMA configuration found
[ 0.000000] AGP: No AGP bridge found
[ 0.035110] Switched APIC routing to cluster x2apic.
[ 0.190550] ACPI Error: No handler for Region [RAM_] (ffff88025683e798) [EmbeddedControl] (20140424/evregion-163)
[ 0.190553] ACPI Error: Region EmbeddedControl (ID=3) has no handler (20140424/exfldio-299)
[ 0.190556] ACPI Error: Method parse/execution failed [\_SB_.PCI0.LPCB.EC0_._REG] (Node ffff880256840078), AE_NOT_EXIST (20140424/psparse-536)
[ 0.190597] ACPI Error: No handler for Region [RAM_] (ffff88025683e798) [EmbeddedControl] (20140424/evregion-163)
[ 0.190599] ACPI Error: Region EmbeddedControl (ID=3) has no handler (20140424/exfldio-299)
[ 0.190601] ACPI Error: Method parse/execution failed [\_SB_.PCI0.LPCB.EC0_._REG] (Node ffff880256840078), AE_NOT_EXIST (20140424/psparse-536)
[ 0.197300] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
[ 1.192454] usbcore: registered new interface driver usbfs
[ 1.192460] usbcore: registered new interface driver hub
[ 1.192476] usbcore: registered new device driver usb
[ 1.200305] Switched to clocksource hpet
[ 1.205386] pnp: PnP ACPI: found 6 devices
[ 1.496336] Console: switching to colour frame buffer device 240x67
[ 1.504860] input: Lid Switch as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input1
[ 1.504878] ACPI: Lid Switch [LID0]
[ 1.528729] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 1.528730] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.528732] usb usb1: Product: EHCI Host Controller
[ 1.528733] usb usb1: Manufacturer: Linux 3.16.0-31-generic ehci_hcd
[ 1.528734] usb usb1: SerialNumber: 0000:00:1a.0
[ 1.528894] hub 1-0:1.0: USB hub found
[ 1.544812] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
[ 1.544814] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.544816] usb usb2: Product: EHCI Host Controller
[ 1.544817] usb usb2: Manufacturer: Linux 3.16.0-31-generic ehci_hcd
[ 1.544818] usb usb2: SerialNumber: 0000:00:1d.0
[ 1.544977] hub 2-0:1.0: USB hub found
[ 1.545441] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002
[ 1.545442] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.545443] usb usb3: Product: xHCI Host Controller
[ 1.545445] usb usb3: Manufacturer: Linux 3.16.0-31-generic xhci_hcd
[ 1.545446] usb usb3: SerialNumber: 0000:00:14.0
[ 1.545622] hub 3-0:1.0: USB hub found
[ 1.547702] usb usb4: New USB device found, idVendor=1d6b, idProduct=0003
[ 1.547703] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.547704] usb usb4: Product: xHCI Host Controller
[ 1.547704] usb usb4: Manufacturer: Linux 3.16.0-31-generic xhci_hcd
[ 1.547705] usb usb4: SerialNumber: 0000:00:14.0
[ 1.547847] hub 4-0:1.0: USB hub found
[ 1.578135] Loaded X.509 cert 'Magrathea: Glacier signing key: a112c18a448a560047ef1f4db74d497f61a45099'
[ 1.582883] ima: No TPM chip found, activating TPM-bypass!
[ 1.583624] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found
[ 1.621414] r8169 0000:08:00.0 eth0: RTL8168g/8111g at 0xffffc90010cae000, 20:6a:8a:a0:49:0c, XID 0c000800 IRQ 47
[ 1.621417] r8169 0000:08:00.0 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko]
[ 1.841111] usb 1-1: new high-speed USB device number 2 using ehci-pci
[ 1.973588] usb 1-1: New USB device found, idVendor=8087, idProduct=8008
[ 1.973591] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 1.973855] hub 1-1:1.0: USB hub found
[ 2.085366] usb 2-1: new high-speed USB device number 2 using ehci-pci
[ 2.217893] usb 2-1: New USB device found, idVendor=8087, idProduct=8000
[ 2.217896] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 2.218175] hub 2-1:1.0: USB hub found
[ 2.385652] usb 3-4: new high-speed USB device number 2 using xhci_hcd
[ 2.518049] usb 3-4: New USB device found, idVendor=0bda, idProduct=0129
[ 2.518052] usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2.518053] usb 3-4: Product: USB2.0-CRW
[ 2.518054] usb 3-4: Manufacturer: Generic
[ 2.518056] usb 3-4: SerialNumber: 20100201396000000
[ 2.613675] EXT4-fs (sda6): re-mounted. Opts: errors=remount-ro
[ 2.629925] usb 3-7: new full-speed USB device number 3 using xhci_hcd
[ 2.633548] lp: driver loaded but no devices found
[ 2.654918] cfg80211: Calling CRDA to update world regulatory domain
[ 2.682678] fb: switching to inteldrmfb from EFI VGA
[ 2.682703] Console: switching to colour dummy device 80x25
[ 2.691242] ath: EEPROM regdomain: 0x6a
[ 2.691245] ath: EEPROM indicates we should expect a direct regpair map
[ 2.691248] ath: Country alpha2 being used: 00
[ 2.691249] ath: Regpair used: 0x6a
[ 2.711154] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
[ 2.711478] ieee80211 phy0: Atheros AR9462 Rev:3 mem=0xffffc90011b00000, irq=18
[ 2.732655] intel_rapl: Found RAPL domain package
[ 2.732660] intel_rapl: Found RAPL domain core
[ 2.732662] intel_rapl: Found RAPL domain uncore
[ 2.732665] intel_rapl: Found RAPL domain dram
[ 2.759418] usb 3-7: New USB device found, idVendor=06cb, idProduct=2970
[ 2.759422] usb 3-7: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 2.759424] usb 3-7: Product:
[ 2.759426] usb 3-7: Manufacturer:
[ 2.760208] usb 3-7: ep 0x2 - rounding interval to 64 microframes, ep desc says 80 microframes
[ 2.816683] cfg80211: World regulatory domain updated:
[ 2.816687] cfg80211: DFS Master region: unset
[ 2.816688] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 2.816691] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 2.816694] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 2.816696] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 2.816697] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 2.816699] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 2.867323] Console: switching to colour frame buffer device 240x67
[ 2.886728] [Firmware Bug]: ACPI(PEGP) defines _DOD but not _DOS
[ 2.902812] input: HDA Intel HDMI HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:03.0/sound/card0/input9
[ 2.902906] input: HDA Intel HDMI HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:03.0/sound/card0/input10
[ 2.903055] input: HDA Intel HDMI HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:03.0/sound/card0/input11
[ 2.905065] sound hdaudioC1D0: autoconfig: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker
[ 2.905068] sound hdaudioC1D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[ 2.905070] sound hdaudioC1D0: hp_outs=1 (0x21/0x0/0x0/0x0/0x0)
[ 2.905071] sound hdaudioC1D0: mono: mono_out=0x0
[ 2.905072] sound hdaudioC1D0: inputs:
[ 2.905074] sound hdaudioC1D0: Mic=0x12
[ 2.912616] input: HDA Intel PCH Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card1/input12
[ 2.975056] init: Error while reading from descriptor: Broken pipe
[ 3.026365] usb 3-9: new high-speed USB device number 4 using xhci_hcd
[ 3.210133] systemd-logind[965]: Watching system buttons on /dev/input/event1 (Lid Switch)
[ 3.225646] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 3.272742] r8169 0000:08:00.0 eth0: link down
[ 3.272785] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 3.279576] usb 3-9: New USB device found, idVendor=1bcf, idProduct=2c6e
[ 3.279580] usb 3-9: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 3.279583] usb 3-9: Product: HD WebCam
[ 3.279585] usb 3-9: Manufacturer: NC.21411.02943201215LM0002
[ 3.490973] Switched to clocksource tsc
[ 3.514915] usb 3-10: new full-speed USB device number 5 using xhci_hcd
[ 3.643839] usb 3-10: New USB device found, idVendor=04ca, idProduct=300d
[ 3.643852] usb 3-10: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 3.660796] usbcore: registered new interface driver btusb
[ 3.662976] uvcvideo: Found UVC 1.00 device HD WebCam (1bcf:2c6e)
[ 3.671576] input: HD WebCam as /devices/pci0000:00/0000:00:14.0/usb3/3-9/3-9:1.0/input/input13
[ 3.671736] usbcore: registered new interface driver uvcvideo
[ 3.679972] usbcore: registered new interface driver usbhid
[ 3.679975] usbhid: USB HID core driver
[ 3.693050] input: UNKNOWN as /devices/pci0000:00/0000:00:14.0/usb3/3-7/3-7:1.0/0003:06CB:2970.0001/input/input14
[ 3.693307] hid-multitouch 0003:06CB:2970.0001: input,hiddev0,hidraw0: USB HID v1.11 Mouse [ ] on usb-0000:00:14.0-7/input0
[ 4.661473] usbcore: registered new interface driver rtsx_usb
[ 4.904151] bbswitch: module verification failed: signature and/or required key missing - tainting kernel
[ 4.904341] bbswitch: version 0.7
[ 4.904345] bbswitch: Found integrated VGA device 0000:00:02.0: \_SB_.PCI0.GFX0
[ 4.904348] bbswitch: Found discrete VGA device 0000:01:00.0: \_SB_.PCI0.PEG0.PEGP
[ 4.904360] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20140424/nsarguments-95)
[ 4.904450] bbswitch: detected an Optimus _DSM function
[ 4.904512] bbswitch: Succesfully loaded. Discrete card 0000:01:00.0 is on
[ 4.906089] bbswitch: disabling discrete graphics
[ 4.906097] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20140424/nsarguments-95)
[ 6.751161] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 6.756859] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 6.822867] wlan0: authenticated
[ 6.826524] wlan0: associate with 80:c6:ab:2d:5f:4f (try 1/3)
[ 6.834025] wlan0: RX AssocResp from 80:c6:ab:2d:5f:4f (capab=0x411 status=0 aid=4)
[ 6.834088] wlan0: associated
[ 6.834109] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 20.770574] wlan0: deauthenticating from 80:c6:ab:2d:5f:4f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 20.783093] cfg80211: Calling CRDA to update world regulatory domain
[ 20.795373] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 20.795403] cfg80211: World regulatory domain updated:
[ 20.795405] cfg80211: DFS Master region: unset
[ 20.795407] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 20.795409] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 20.795411] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 20.795412] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 20.795413] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 20.795415] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 20.928068] r8169 0000:08:00.0 eth0: link down
[ 20.928192] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 21.016685] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 62.038037] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 62.133748] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 62.281327] r8169 0000:08:00.0 eth0: link down
[ 62.281378] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 65.691063] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 65.695242] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 65.726405] wlan0: authenticated
[ 65.727017] wlan0: associate with 80:c6:ab:2d:5f:4f (try 1/3)
[ 65.831109] wlan0: associate with 80:c6:ab:2d:5f:4f (try 2/3)
[ 65.855474] wlan0: RX AssocResp from 80:c6:ab:2d:5f:4f (capab=0x411 status=0 aid=4)
[ 65.855521] wlan0: associated
[ 65.855545] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 78.345468] wlan0: deauthenticating from 80:c6:ab:2d:5f:4f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 78.478236] cfg80211: Calling CRDA to update world regulatory domain
[ 78.488251] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 78.491349] cfg80211: World regulatory domain updated:
[ 78.491352] cfg80211: DFS Master region: unset
[ 78.491353] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 78.491355] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 78.491356] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 78.491357] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 78.491357] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 78.491358] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 78.643255] r8169 0000:08:00.0 eth0: link down
[ 78.643310] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 78.731721] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 120.119052] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 120.158681] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 120.162744] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 120.171768] wlan0: authenticated
[ 120.175466] wlan0: associate with 80:c6:ab:2d:5f:4f (try 1/3)
[ 120.178604] wlan0: RX AssocResp from 80:c6:ab:2d:5f:4f (capab=0x411 status=0 aid=4)
[ 120.178650] wlan0: associated
[ 120.178670] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 120.216481] wlan0: deauthenticating from 80:c6:ab:2d:5f:4f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 120.225845] cfg80211: Calling CRDA to update world regulatory domain
[ 120.226107] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 120.236671] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 120.236716] cfg80211: World regulatory domain updated:
[ 120.236718] cfg80211: DFS Master region: unset
[ 120.236719] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 120.236721] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 120.236723] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 120.236725] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 120.236726] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 120.236728] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 120.385837] r8169 0000:08:00.0 eth0: link down
[ 120.385894] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 123.975744] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 123.979880] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 123.982948] wlan0: authenticated
[ 123.987670] wlan0: associate with 80:c6:ab:2d:5f:4f (try 1/3)
[ 123.990667] wlan0: RX AssocResp from 80:c6:ab:2d:5f:4f (capab=0x411 status=0 aid=4)
[ 123.990715] wlan0: associated
[ 123.990724] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 168.956334] cfg80211: Calling CRDA to update world regulatory domain
[ 168.965444] cfg80211: World regulatory domain updated:
[ 168.965447] cfg80211: DFS Master region: unset
[ 168.965448] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 168.965449] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 168.965450] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 168.965451] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 168.965452] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 168.965453] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 170.269003] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 170.423949] r8169 0000:08:00.0 eth0: link down
[ 170.424005] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 173.994426] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 173.998493] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 174.017062] wlan0: authenticated
[ 174.017728] wlan0: associate with 80:c6:ab:2d:5f:4f (try 1/3)
[ 174.042619] wlan0: RX AssocResp from 80:c6:ab:2d:5f:4f (capab=0x411 status=0 aid=4)
[ 174.042666] wlan0: associated
[ 174.042674] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 185.330951] wlan0: deauthenticating from 80:c6:ab:2d:5f:4f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 185.341248] cfg80211: Calling CRDA to update world regulatory domain
[ 185.351467] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 185.351520] cfg80211: World regulatory domain updated:
[ 185.351522] cfg80211: DFS Master region: unset
[ 185.351523] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 185.351525] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 185.351526] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 185.351527] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 185.351527] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 185.351528] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 185.508451] r8169 0000:08:00.0 eth0: link down
[ 185.508505] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 185.593019] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 219.786998] ath9k: ath9k: Driver unloaded
[ 222.327056] r8169 0000:08:00.0 eth0: link down
[ 222.327115] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 230.452948] cfg80211: Calling CRDA to update world regulatory domain
[ 230.462816] cfg80211: World regulatory domain updated:
[ 230.462819] cfg80211: DFS Master region: unset
[ 230.462820] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 230.462821] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 230.462823] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 230.462824] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 230.462824] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 230.462825] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 230.477630] ath: EEPROM regdomain: 0x6a
[ 230.477634] ath: EEPROM indicates we should expect a direct regpair map
[ 230.477636] ath: Country alpha2 being used: 00
[ 230.477637] ath: Regpair used: 0x6a
[ 230.478223] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
[ 230.478631] ieee80211 phy0: Atheros AR9462 Rev:3 mem=0xffffc90010f80000, irq=18
[ 230.491764] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 264.266917] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 264.279528] wlan0: direct probe to 80:c6:ab:2d:5f:4f (try 1/3)
[ 264.483174] wlan0: direct probe to 80:c6:ab:2d:5f:4f (try 2/3)
[ 264.687404] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 3/3)
[ 264.693620] wlan0: authenticated
[ 269.290253] wlan0: aborting authentication with 80:c6:ab:2d:5f:4f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 279.417906] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 279.429117] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 279.432621] wlan0: authenticated
[ 284.438627] wlan0: aborting authentication with 80:c6:ab:2d:5f:4f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 294.963302] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 294.974431] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 294.980991] wlan0: authenticated
[ 311.006160] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 311.017406] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 311.020803] wlan0: authenticated
[ 316.028047] wlan0: aborting authentication with 80:c6:ab:2d:5f:4f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 327.315264] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 327.326459] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 327.328992] wlan0: authenticated
[ 362.387385] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 362.398298] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 362.400291] wlan0: authenticated
[ 367.408919] wlan0: aborting authentication with 80:c6:ab:2d:5f:4f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 383.373772] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 383.384922] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 383.386937] wlan0: authenticated
[ 388.390674] wlan0: aborting authentication with 80:c6:ab:2d:5f:4f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 406.178599] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 426.224052] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 426.232187] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 426.235271] wlan0: authenticated
[ 431.242854] wlan0: aborting authentication with 80:c6:ab:2d:5f:4f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 431.247572] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 431.251744] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 431.262177] wlan0: authenticated
[ 436.257433] wlan0: aborting authentication with 80:c6:ab:2d:5f:4f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 446.782336] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 446.793547] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 446.796328] wlan0: authenticated
[ 451.804247] wlan0: aborting authentication with 80:c6:ab:2d:5f:4f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 462.836157] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 462.847097] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 462.851420] wlan0: authenticated
[ 479.483654] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 479.494903] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 479.501734] wlan0: authenticated
[ 484.505603] wlan0: aborting authentication with 80:c6:ab:2d:5f:4f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 540.482141] ath9k: ath9k: Driver unloaded
[ 549.676928] cfg80211: Calling CRDA to update world regulatory domain
[ 549.693439] cfg80211: World regulatory domain updated:
[ 549.693442] cfg80211: DFS Master region: unset
[ 549.693443] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 549.693444] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 549.693445] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 549.693446] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 549.693447] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 549.693448] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 549.708376] ath: EEPROM regdomain: 0x6a
[ 549.708378] ath: EEPROM indicates we should expect a direct regpair map
[ 549.708380] ath: Country alpha2 being used: 00
[ 549.708380] ath: Regpair used: 0x6a
[ 549.708859] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
[ 549.709196] ieee80211 phy0: Atheros AR9462 Rev:3 mem=0xffffc90010f80000, irq=18
[ 549.722333] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 683.735572] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 683.748378] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 683.912840] wlan0: authenticated
[ 688.759090] wlan0: aborting authentication with 80:c6:ab:2d:5f:4f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 701.741767] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 701.752798] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 701.757933] wlan0: authenticated
[ 706.763539] wlan0: aborting authentication with 80:c6:ab:2d:5f:4f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 717.295397] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 717.306612] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 717.308663] wlan0: authenticated
[ 722.314644] wlan0: aborting authentication with 80:c6:ab:2d:5f:4f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 733.340653] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 733.351639] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 733.353911] wlan0: authenticated
[ 738.362297] wlan0: aborting authentication with 80:c6:ab:2d:5f:4f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 743.251494] usb 3-1: new full-speed USB device number 6 using xhci_hcd
[ 743.449912] usb 3-1: New USB device found, idVendor=046d, idProduct=c041
[ 743.449915] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 743.449917] usb 3-1: Product: USB Gaming Mouse
[ 743.449918] usb 3-1: Manufacturer: Logitech
[ 743.450089] usb 3-1: ep 0x82 - rounding interval to 64 microframes, ep desc says 80 microframes
[ 743.463084] input: Logitech USB Gaming Mouse as /devices/pci0000:00/0000:00:14.0/usb3/3-1/3-1:1.0/0003:046D:C041.0002/input/input16
[ 743.463267] hid-generic 0003:046D:C041.0002: input,hidraw1: USB HID v1.11 Mouse [Logitech USB Gaming Mouse] on usb-0000:00:14.0-1/input0
[ 743.465131] hid-generic 0003:046D:C041.0003: hiddev0,hidraw2: USB HID v1.11 Device [Logitech USB Gaming Mouse] on usb-0000:00:14.0-1/input1
[ 753.398367] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 753.409562] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 753.425828] wlan0: authenticated
[ 754.770122] wlan0: aborting authentication with 80:c6:ab:2d:5f:4f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 764.792375] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 764.803353] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 764.805965] wlan0: authenticated
[ 769.821426] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 769.825727] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 769.827862] wlan0: authenticated
[ 774.836075] wlan0: aborting authentication with 80:c6:ab:2d:5f:4f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 835.907491] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 835.918750] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 835.920808] wlan0: authenticated
[ 840.925189] wlan0: aborting authentication with 80:c6:ab:2d:5f:4f by local choice (Reason: 3=DEAUTH_LEAVING)
[ 846.427563] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 846.562645] r8169 0000:08:00.0 eth0: link down
[ 846.562715] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 846.643358] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 887.995243] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 888.012220] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 888.144206] r8169 0000:08:00.0 eth0: link down
[ 888.144268] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 891.498228] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 891.502306] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 891.506512] wlan0: authenticated
[ 891.509742] wlan0: associate with 80:c6:ab:2d:5f:4f (try 1/3)
[ 891.512612] wlan0: RX AssocResp from 80:c6:ab:2d:5f:4f (capab=0x411 status=0 aid=4)
[ 891.512658] wlan0: associated
[ 891.512665] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 1508.379610] cfg80211: Calling CRDA to update world regulatory domain
[ 1508.389754] cfg80211: World regulatory domain updated:
[ 1508.389758] cfg80211: DFS Master region: unset
[ 1508.389759] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 1508.389761] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1508.389763] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1508.389764] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1508.389765] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1508.389766] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1508.699289] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 1508.842053] r8169 0000:08:00.0 eth0: link down
[ 1508.842119] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 1515.824117] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 1515.831653] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 1515.834105] wlan0: authenticated
[ 1515.835555] wlan0: associate with 80:c6:ab:2d:5f:4f (try 1/3)
[ 1515.838719] wlan0: RX AssocResp from 80:c6:ab:2d:5f:4f (capab=0x411 status=0 aid=4)
[ 1515.838766] wlan0: associated
[ 1515.838775] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 1515.876822] wlan0: deauthenticating from 80:c6:ab:2d:5f:4f by local choice (Reason: 2=PREV_AUTH_NOT_VALID)
[ 1515.885636] cfg80211: Calling CRDA to update world regulatory domain
[ 1515.885686] wlan0: authenticate with 80:c6:ab:2d:5f:4f
[ 1515.889765] wlan0: send auth to 80:c6:ab:2d:5f:4f (try 1/3)
[ 1515.889902] cfg80211: World regulatory domain updated:
[ 1515.889904] cfg80211: DFS Master region: unset
[ 1515.889905] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 1515.889907] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1515.889909] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1515.889910] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1515.889911] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1515.889912] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 1515.892658] wlan0: authenticated
[ 1515.895600] wlan0: associate with 80:c6:ab:2d:5f:4f (try 1/3)
[ 1515.900071] wlan0: RX AssocResp from 80:c6:ab:2d:5f:4f (capab=0x411 status=0 aid=4)
[ 1515.900115] wlan0: associated
 Release Date: 09/12/2014
 Manufacturer: Acer
 Product Name: Aspire VN7-591G
 Serial Number: NXMQLEZ00144114E736600
 Manufacturer: Acer
 Product Name: Aspire VN7-591G
 Serial Number: NBMQL11002441003246600
 Manufacturer: Chassis Manufacturer
 Serial Number: NXMQLEZ00144114E736600
 Manufacturer: Intel(R) Corporation
 Serial Number: To Be Filled By O.E.M.
 Manufacturer: Kingston
 Serial Number: 5D185DBE
 Manufacturer: Empty
 Serial Number: Empty
 Manufacturer: Empty
 Serial Number: Empty
 Manufacturer: Empty
 Serial Number: Empty
eth0 no wireless extensions.

wlan0 IEEE 802.11abgn ESSID:"PROSTIBULUS"
          Mode:Managed Frequency:2.462 GHz Access Point: 80:C6:AB:2D:5F:4F
          Bit Rate=11 Mb/s Tx-Power=16 dBm
          Retry short limit:7 RTS thr:off Fragment thr:off
          Power Management:off
          Link Quality=57/70 Signal level=-53 dBm
          Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
          Tx excessive retries:112 Invalid misc:129 Missed beacon:0

lo no wireless extensions.

install snd-rawmidi /sbin/modprobe --ignore-install snd-rawmidi $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-seq-midi ; : ; }
options ath9k nohwcrypt=1
# which ath5k cannot recover. To prevent this condition, stop
blacklist ath_pci
blacklist eth1394
# replaced by p54pci
blacklist prism54
# replaced by b43 and ssb.
blacklist bcm43xx
blacklist eth1394
# replaced by p54pci
blacklist prism54
# replaced by b43 and ssb.
blacklist bcm43xx
blacklist eth1394
# replaced by p54pci
blacklist prism54
# replaced by b43 and ssb.
blacklist bcm43xx
blacklist uart6850
blacklist twl4030_wdt
# /etc/modprobe.d/iwlwifi.conf
# iwlwifi will dyamically load either iwldvm or iwlmvm depending on the
# microcode file installed on the system. When removing iwlwifi, first
# remove the iwl?vm module and then iwlwifi.
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
sudo: hwinfo: command not found
root 918 0.0 0.1 339504 10592 ? Ssl 22:52 0:01 NetworkManager
root 1576 0.1 0.1 159244 14412 ? S 22:52 0:03 /usr/bin/python -O /usr/share/wicd/daemon/wicd-daemon.py
root 1625 0.0 0.1 83720 15516 ? S 22:52 0:00 /usr/bin/python -O /usr/share/wicd/daemon/monitor.py
nobody 2088 0.0 0.0 40492 3568 ? S 22:52 0:00 /usr/sbin/dnsmasq --no-resolv --keep-in-foreground --no-hosts --bind-interfaces --pid-file=/run/sendsigs.omit.d/network-manager.dnsmasq.pid --listen-address=127.0.1.1 --conf-file=/var/run/NetworkManager/dnsmasq.conf --cache-size=0 --proxy-dnssec --enable-dbus=org.freedesktop.NetworkManager.dnsmasq --conf-dir=/etc/NetworkManager/dnsmasq.d
vil 2637 0.0 0.4 210608 33644 ? S 22:52 0:00 /usr/bin/python -O /usr/share/wicd/gtk/wicd-client.py --tray
root 7463 0.0 0.0 30700 5516 ? Ss 23:17 0:00 /sbin/wpa_supplicant -B -P /run/sendsigs.omit.d/wpasupplicant.pid -u -s -O /var/run/wpa_supplicant
root 7510 0.0 0.0 10268 5208 ? S 23:17 0:00 /sbin/dhclient -d -sf /usr/lib/NetworkManager/nm-dhcp-client.action -pf /run/sendsigs.omit.d/network-manager.dhclient-wlan0.pid -lf /var/lib/NetworkManager/dhclient-5a250813-ce79-4e77-b1d7-c3e6594d8971-wlan0.lease -cf /var/lib/NetworkManager/dhclient-wlan0.conf wlan0
vil 8675 0.0 0.0 13916 2316 pts/4 S+ 23:28 0:00 grep -E --color=auto wpa|icd|etwork
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 wlan0
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 127.0.1.1
total 102692
1308161 drwxr-xr-x 5 root root 4096 Feb 25 00:00 .
      2 drwxr-xr-x 24 root root 4096 Feb 24 23:59 ..
1308165 -rw-r--r-- 1 root root 1207013 Okt 21 20:36 abi-3.16.0-23-generic
1324386 -rw-r--r-- 1 root root 1207386 Jan 13 00:06 abi-3.16.0-30-generic
1336703 -rw-r--r-- 1 root root 1207327 Feb 10 17:25 abi-3.16.0-31-generic
1308166 -rw-r--r-- 1 root root 171704 Okt 21 20:36 config-3.16.0-23-generic
1324387 -rw-r--r-- 1 root root 171760 Jan 13 00:06 config-3.16.0-30-generic
1336705 -rw-r--r-- 1 root root 171794 Feb 10 17:25 config-3.16.0-31-generic
      1 drwxr-xr-x 4 root root 4096 Jan 1 1970 efi
1325470 drwxr-xr-x 6 root root 4096 Feb 25 00:01 grub
1308163 drwxr-xr-x 5 root root 4096 Feb 14 15:44 grub.bak
1324392 -rw-r--r-- 1 root root 29881977 Feb 14 14:49 initrd.img-3.16.0-23-generic
1326705 -rw-r--r-- 1 root root 20414045 Feb 15 16:48 initrd.img-3.16.0-30-generic
1338850 -rw-r--r-- 1 root root 20420287 Feb 25 00:00 initrd.img-3.16.0-31-generic
1308167 -rw-r--r-- 1 root root 176500 Mär 12 2014 memtest86+.bin
1308168 -rw-r--r-- 1 root root 178176 Mär 12 2014 memtest86+.elf
1308169 -rw-r--r-- 1 root root 178680 Mär 12 2014 memtest86+_multiboot.bin
1308164 -rw------- 1 root root 3498860 Okt 21 20:36 System.map-3.16.0-23-generic
1321585 -rw------- 1 root root 3501168 Jan 13 00:06 System.map-3.16.0-30-generic
1336702 -rw------- 1 root root 3501573 Feb 10 17:25 System.map-3.16.0-31-generic
1327615 -rw-r--r-- 1 root root 6401120 Feb 14 14:43 vmlinuz-3.16.0-23-generic
1321584 -rw------- 1 root root 6409808 Jan 13 00:06 vmlinuz-3.16.0-30-generic
1336704 -rw------- 1 root root 6410624 Feb 10 17:25 vmlinuz-3.16.0-31-generic
Support status summary of 'vil-acer':

You have 1644 packages (86.5%) supported until September 2015 (9m)
You have 8 packages (0.4%) supported until Dezember 2015 (9m)

You have 2 packages (0.1%) that can not/no-longer be downloaded
You have 247 packages (13.0%) that are unsupported

Run with --show-unsupported, --show-supported or --show-all to see more details
Downloaded daily snapshot dated 2015-03-03 03:15:02
--2015-03-04 23:28:48-- http://www.linux-usb.org/usb.ids
Resolving www.linux-usb.org (www.linux-usb.org)... 216.34.181.97
Connecting to www.linux-usb.org (www.linux-usb.org)|216.34.181.97|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 540064 (527K) [text/plain]
Saving to: ‘/var/lib/usbutils/usb.ids.new’

100%[===========================================================================================================>] 540'064 47.2KB/s in 11s

2015-03-04 23:28:59 (49.1 KB/s) - ‘/var/lib/usbutils/usb.ids.new’ saved [540064/540064]

Done.
Module Size Used by
hid_generic 12559 0
ath9k 136984 0
ath9k_common 25638 1 ath9k
ath9k_hw 446568 2 ath9k_common,ath9k
ath 29052 3 ath9k_common,ath9k,ath9k_hw
mac80211 660592 1 ath9k
cfg80211 510218 4 ath,ath9k_common,ath9k,mac80211
ctr 13049 1
ccm 17731 1
bbswitch 13943 0
rtsx_usb_ms 18651 0
rtsx_usb_sdmmc 27787 0
memstick 16966 1 rtsx_usb_ms
rtsx_usb 20933 2 rtsx_usb_sdmmc,rtsx_usb_ms
hid_multitouch 17419 0
uvcvideo 81065 0
videobuf2_vmalloc 13216 1 uvcvideo
videobuf2_memops 13362 1 videobuf2_vmalloc
videobuf2_core 59104 1 uvcvideo
v4l2_common 15682 1 videobuf2_core
usbhid 52566 0
videodev 149725 3 uvcvideo,v4l2_common,videobuf2_core
hid 110426 3 hid_multitouch,hid_generic,usbhid
media 21963 2 uvcvideo,videodev
btusb 32448 0
bnep 19543 2
rfcomm 69509 8
bluetooth 446190 22 bnep,btusb,rfcomm
6lowpan_iphc 18702 1 bluetooth
nls_iso8859_1 12713 1
snd_hda_codec_realtek 77185 1
snd_hda_codec_generic 68914 1 snd_hda_codec_realtek
snd_hda_codec_hdmi 47547 1
joydev 17344 0
acer_wmi 32522 0
sparse_keymap 13948 1 acer_wmi
intel_rapl 18783 0
x86_pkg_temp_thermal 14205 0
intel_powerclamp 18786 0
coretemp 13441 0
kvm_intel 143592 0
kvm 459835 1 kvm_intel
crct10dif_pclmul 14307 0
crc32_pclmul 13133 0
snd_hda_intel 30420 5
snd_hda_controller 35152 1 snd_hda_intel
ghash_clmulni_intel 13230 0
aesni_intel 152552 3
aes_x86_64 17131 1 aesni_intel
lrw 13287 1 aesni_intel
gf128mul 14951 1 lrw
glue_helper 13944 1 aesni_intel
snd_hda_codec 139675 5 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller
ablk_helper 13597 1 aesni_intel
cryptd 20360 3 ghash_clmulni_intel,aesni_intel,ablk_helper
snd_hwdep 17698 1 snd_hda_codec
arc4 12608 2
snd_pcm 104102 4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller
snd_seq_midi 13564 0
snd_seq_midi_event 14899 1 snd_seq_midi
serio_raw 13434 0
snd_rawmidi 30876 1 snd_seq_midi
i915 917814 6
snd_seq 67224 2 snd_seq_midi_event,snd_seq_midi
snd_seq_device 14497 3 snd_seq,snd_rawmidi,snd_seq_midi
drm_kms_helper 61627 1 i915
snd_timer 29513 2 snd_pcm,snd_seq
drm 310919 5 i915,drm_kms_helper
video 20128 2 i915,acer_wmi
lpc_ich 21093 0
snd 87611 21 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,snd_seq_device
i2c_algo_bit 13406 1 i915
mei_me 19742 0
mei 87931 1 mei_me
soc_button_array 12720 0
soundcore 15052 2 snd,snd_hda_codec
cuse 13445 3
shpchp 37040 0
parport_pc 32741 0
wmi 19193 1 acer_wmi
mac_hid 13227 0
ppdev 17671 0
lp 17759 0
parport 42299 3 lp,ppdev,parport_pc
ahci 34062 4
r8169 71471 0
libahci 32424 1 ahci
mii 13934 1 r8169

Is it maybe worth it recompiling the drivers with disabled HT?

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Revision history for this message
Mark Rijckenberg (markrijckenberg) said : 		#1

I suspect that your wireless adapter is experiencing the following bug, for which there is no solution yet:

https://bugs.launchpad.net/linuxmint/+bug/1040943

Revision history for this message
actionparsnip (andrew-woodhead666) said : 		#2

Run the below and reboot:

echo "options ath9k nohwcrypt=1" | sudo tee /etc/modprobe.d/ath9kfix.conf > /dev/null

Is it better?

Revision history for this message
this (vilavil) said : 		#3

Unfortunately the nohwcrypt option does not help.

From all the information that I have read, it seems like there is no easy fix to this. I'm willing to delve into the driver code a bit so as to diagnose the problem if anyone has any clues about where to start and what sort of problem it could possibly be.

Revision history for this message
this (vilavil) said : 		#4

Another thing occurred to me when I was reading through a similar bug : https://bugs.launchpad.net/ubuntu/+source/linux/+bug/945379

The bug indeed only now that I have had Ubuntu installed for about 2 weeks or so (previously had the same issues with Linux Mint). It worked fine up to a week ago. It's as if it worked when the system is fresh, then something got full and now it's shaky.

Revision history for this message
Jeremy (wa113y3s) said : 		#5

Does iwlist scan show TKIP being used for encryption on your wifi access point?

Revision history for this message
this (vilavil) said : 		#6

                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK

It seems to be the case.

Revision history for this message
this (vilavil) said : 		#7

When I disable TKIP, it seems to be running as it should for now at least. I tried to re-enable wifi n but problems reappear if I try that.

So there seems to be a problem with both wifi n and TKIP. Does anyone know what those have in common that could cause problems?

Revision history for this message
this (vilavil) said : 		#8

So I can confirm that disabling TKIP gets me normal download/upload speeds and latencies. However, connecting to the network still takes a few tries, as in : connection established for half a second, disconnect, wait 10 seconds, repeat 2 or 3 times, until the connection gets established.

Revision history for this message
Lê Kiến Trúc (le-kien-truc) said : 		#9

I think we should convert its into a bug, my installation on Dell E7440 works well for 2 years.

lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 14.04.3 LTS
Release: 14.04
Codename: trusty

uname -a
Linux truclk-dell-e7440 3.13.0-62-generic #102-Ubuntu SMP Tue Aug 11 14:29:36 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

But now things are go crazy, the network is very slow and it's tried many times before connect to network successfully. I think it's once of upgrade problem or kernel.

Can you help with this problem?

Provide an answer of your own, or ask this for more information if necessary.

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