My issue with Wifi is different from the one in the question marked as duplicated: that question was about how to collect the information. I have already collected the infor, but I am afraid i cannot catch the issue.
Wifi still stops working every now and then, always when starting up. The card is an Atheros AR9285
I have attached the output of the suggested Wireless Info script,
hope that somebody can help me to fix this issue.
Thanks in advance
########## wireless info START ##########
Report from: 25 Jul 2017 18:59 CEST +0200
Booted last: 25 Jul 2017 00:00 CEST +0200
Script from: 25 Mar 2017 07:04 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 16.04.2 LTS
Release: 16.04
Codename: xenial
##### kernel ############################
Linux 4.4.0-83-generic #106-Ubuntu SMP Mon Jun 26 17:54:43 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
Parameters: ro, quiet, splash, vt.handoff=7
##### desktop ###########################
GNOME Flashback (Metacity)
##### lspci #############################
02:00.0 Network controller [0280]: Qualcomm Atheros AR9285 Wireless Network Adapter (PCI-Express) [168c:002b] (rev 01)
Subsystem: Foxconn International, Inc. T77H126.00 802.11bgn Wireless Half-size Mini PCIe Card [105b:e017]
Kernel driver in use: ath9k
04:00.0 Ethernet controller [0200]: Marvell Technology Group Ltd. Yukon Optima 88E8059 [PCIe Gigabit Ethernet Controller with AVB] [11ab:4381] (rev 11)
Subsystem: Sony Corporation Yukon Optima 88E8059 [PCIe Gigabit Ethernet Controller with AVB] [104d:9071]
Kernel driver in use: sky2
##### lsusb #############################
Bus 002 Device 012: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 002 Device 011: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 002 Device 010: ID 0409:005a NEC Corp. HighSpeed Hub
Bus 002 Device 014: ID 090c:1000 Silicon Motion, Inc. - Taiwan (formerly Feiya Technology Corp.) Flash Drive
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 004: ID 0489:e00f Foxconn / Hon Hai Foxconn T77H114 BCM2070 [Single-Chip Bluetooth 2.1 + EDR Adapter]
Bus 001 Device 003: ID 0c45:6409 Microdia Webcam
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA card info ##################
##### rfkill ############################
0: sony-wifi: Wireless LAN
Soft blocked: no
Hard blocked: no
1: sony-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
2: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
3: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
##### lsmod #############################
ath9k 147456 0
ath9k_common 36864 1 ath9k
ath9k_hw 466944 2 ath9k_common,ath9k
ath 32768 3 ath9k_common,ath9k,ath9k_hw
mac80211 737280 1 ath9k
cfg80211 565248 4 ath,ath9k_common,ath9k,mac80211
##### interfaces ########################
auto lo
iface lo inet loopback
##### ifconfig ##########################
enp4s0 Link encap:Ethernet HWaddr
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:18
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:3644 errors:0 dropped:0 overruns:0 frame:0
TX packets:3644 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:285107 (285.1 KB) TX bytes:285107 (285.1 KB)
wlp2s0 Link encap:Ethernet HWaddr
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:2221 errors:0 dropped:0 overruns:0 frame:0
TX packets:2277 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1555927 (1.5 MB) TX bytes:322526 (322.5 KB)
##### iwconfig ##########################
lo no wireless extensions.
enp4s0 no wireless extensions.
wlp2s0 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=14 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
##### route #############################
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
##### resolv.conf #######################
nameserver 127.0.1.1
##### network managers ##################
Installed:
NetworkManager
Running:
root 840 1 0 09:16 ? 00:00:03 /usr/sbin/NetworkManager --no-daemon
##### NetworkManager info ###############
GENERAL.DEVICE: wlp2s0
GENERAL.TYPE: wifi
GENERAL.NM-TYPE: NMDeviceWifi
GENERAL.VENDOR: Qualcomm Atheros
GENERAL.PRODUCT: AR9285 Wireless Network Adapter (PCI-Express) (T77H126.00 802.11bgn Wireless Half-size Mini PCIe Card)
GENERAL.DRIVER: ath9k
GENERAL.DRIVER-VERSION: 4.4.0-83-generic
GENERAL.FIRMWARE-VERSION: N/A
GENERAL.HWADDR:
GENERAL.MTU: 0
GENERAL.STATE: 30 (disconnected)
GENERAL.REASON: 0 (No reason given)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:1c.0/0000:02:00.0/net/wlp2s0
GENERAL.IP-IFACE:
GENERAL.IS-SOFTWARE: no
GENERAL.NM-MANAGED: yes
GENERAL.AUTOCONNECT: yes
GENERAL.FIRMWARE-MISSING: no
GENERAL.NM-PLUGIN-MISSING: no
GENERAL.PHYS-PORT-ID: --
GENERAL.CONNECTION: --
GENERAL.CON-UUID: --
GENERAL.CON-PATH: --
GENERAL.METERED: unknown
CAPABILITIES.CARRIER-DETECT: no
CAPABILITIES.SPEED: unknown
CAPABILITIES.IS-SOFTWARE: no
WIFI-PROPERTIES.WEP: yes
WIFI-PROPERTIES.WPA: yes
WIFI-PROPERTIES.WPA2: yes
WIFI-PROPERTIES.TKIP: yes
WIFI-PROPERTIES.CCMP: yes
WIFI-PROPERTIES.AP: yes
WIFI-PROPERTIES.ADHOC: yes
WIFI-PROPERTIES.2GHZ: yes
WIFI-PROPERTIES.5GHZ: no
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{0}
CONNECTIONS.AVAILABLE-CONNECTIONS[1]: 09ab83e6-7f40-4644-b73c-7450b455a0c1 | WLAN_P&I
GENERAL.DEVICE: enp4s0
GENERAL.TYPE: ethernet
GENERAL.NM-TYPE: NMDeviceEthernet
GENERAL.VENDOR: Marvell Technology Group Ltd.
GENERAL.PRODUCT: Yukon Optima 88E8059 [PCIe Gigabit Ethernet Controller with AVB]
GENERAL.DRIVER: sky2
GENERAL.DRIVER-VERSION: 1.30
GENERAL.FIRMWARE-VERSION:
GENERAL.HWADDR:
GENERAL.MTU: 1500
GENERAL.STATE: 20 (unavailable)
GENERAL.REASON: 2 (Device is now managed)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:1c.2/0000:04:00.0/net/enp4s0
GENERAL.IP-IFACE:
GENERAL.IS-SOFTWARE: no
GENERAL.NM-MANAGED: yes
GENERAL.AUTOCONNECT: yes
GENERAL.FIRMWARE-MISSING: no
GENERAL.NM-PLUGIN-MISSING: no
GENERAL.PHYS-PORT-ID: --
GENERAL.CONNECTION: --
GENERAL.CON-UUID: --
GENERAL.CON-PATH: --
GENERAL.METERED: unknown
CAPABILITIES.CARRIER-DETECT: yes
CAPABILITIES.SPEED: unknown
CAPABILITIES.IS-SOFTWARE: no
WIRED-PROPERTIES.CARRIER: off
CONNECTIONS.AVAILABLE-CONNECTION-PATHS:
SSID BSSID MODE CHAN FREQ RATE SIGNAL BARS SECURITY ACTIVE *
WLAN_P&I I' [AN1]> Infra 9 2452 MHz 54 Mbit/s 22 ▂___ WPA2 no
##### NetworkManager.state ##############
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
##### NetworkManager.conf ###############
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=false
##### NetworkManager profiles ###########
[[/etc/NetworkManager/system-connections/WLAN_P&I]] (600 root)
[connection] id=WLAN_P&I | type=wifi | permissions=
[wifi] mac-address= | mac-address-blacklist= | ssid=WLAN_P&I
[ipv4] method=auto
[ipv6] method=auto
##### iw reg get ########################
Region: Europe/Berlin (based on set time zone)
country 00: DFS-UNSET
(2402 - 2472 @ 40), (N/A, 20), (N/A)
(2457 - 2482 @ 40), (N/A, 20), (N/A), NO-IR
(2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM, NO-IR
(5170 - 5250 @ 80), (N/A, 20), (N/A), NO-IR
(5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, NO-IR
(5490 - 5730 @ 160), (N/A, 20), (0 ms), DFS, NO-IR
(5735 - 5835 @ 80), (N/A, 20), (N/A), NO-IR
(57240 - 63720 @ 2160), (N/A, 0), (N/A)
##### iwlist channels ###################
lo no frequency information.
enp4s0 no frequency information.
wlp2s0 13 channels in total; available frequencies :
Channel 01 : 2.412 GHz
Channel 02 : 2.417 GHz
Channel 03 : 2.422 GHz
Channel 04 : 2.427 GHz
Channel 05 : 2.432 GHz
Channel 06 : 2.437 GHz
Channel 07 : 2.442 GHz
Channel 08 : 2.447 GHz
Channel 09 : 2.452 GHz
Channel 10 : 2.457 GHz
Channel 11 : 2.462 GHz
Channel 12 : 2.467 GHz
Channel 13 : 2.472 GHz
##### iwlist scan #######################
lo Interface doesn't support scanning.
enp4s0 Interface doesn't support scanning.
wlp2s0 No scan results
##### module infos ######################
[ath9k]
filename: /lib/modules/4.4.0-83-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: D578DE67B7E1EB3760B717B
depends: mac80211,ath9k_hw,ath9k_common,cfg80211,ath
intree: Y
vermagic: 4.4.0-83-generic SMP mod_unload modversions
parm: debug:Debugging mask (uint)
parm: nohwcrypt:Disable hardware encryption (int)
parm: blink:Enable LED blink on activity (int)
parm: led_active_high:Invert LED polarity (int)
parm: btcoex_enable:Enable wifi-BT coexistence (int)
parm: bt_ant_diversity:Enable WLAN/BT RX antenna diversity (int)
parm: ps_enable:Enable WLAN PowerSave (int)
parm: use_chanctx:Enable channel context for concurrency (int)
[ath9k_common]
filename: /lib/modules/4.4.0-83-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k_common.ko
license: Dual BSD/GPL
description: Shared library for Atheros wireless 802.11n LAN cards.
author: Atheros Communications
srcversion: 5E13CACC8C4252BB4B57367
depends: ath9k_hw,cfg80211,ath
intree: Y
vermagic: 4.4.0-83-generic SMP mod_unload modversions
[ath9k_hw]
filename: /lib/modules/4.4.0-83-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k_hw.ko
license: Dual BSD/GPL
description: Support for Atheros 802.11n wireless LAN cards.
author: Atheros Communications
srcversion: C1B110E703660933E3BFE1A
depends: ath
intree: Y
vermagic: 4.4.0-83-generic SMP mod_unload modversions
[ath]
filename: /lib/modules/4.4.0-83-generic/kernel/drivers/net/wireless/ath/ath.ko
license: Dual BSD/GPL
description: Shared library for Atheros wireless LAN cards.
author: Atheros Communications
srcversion: 3FCDBF7CE71CB8FB980D59D
depends: cfg80211
intree: Y
vermagic: 4.4.0-83-generic SMP mod_unload modversions
[mac80211]
filename: /lib/modules/4.4.0-83-generic/kernel/net/mac80211/mac80211.ko
license: GPL
description: IEEE 802.11 subsystem
srcversion: EFF66BE1B3C123F1C2078FB
depends: cfg80211
intree: Y
vermagic: 4.4.0-83-generic SMP mod_unload modversions
parm: minstrel_vht_only:Use only VHT rates when VHT is supported by sta. (bool)
parm: max_nullfunc_tries:Maximum nullfunc tx tries before disconnecting (reason 4). (int)
parm: max_probe_tries:Maximum probe tries before disconnecting (reason 4). (int)
parm: beacon_loss_count:Number of beacon intervals before we decide beacon was lost. (int)
parm: probe_wait_ms:Maximum time(ms) to wait for probe response before disconnecting (reason 4). (int)
parm: ieee80211_default_rc_algo:Default rate control algorithm for mac80211 to use (charp)
[cfg80211]
filename: /lib/modules/4.4.0-83-generic/kernel/net/wireless/cfg80211.ko
description: wireless configuration support
license: GPL
author: Johannes Berg
srcversion: 48C96882CCDC964173BE1D1
depends:
intree: Y
vermagic: 4.4.0-83-generic SMP mod_unload modversions
parm: bss_entries_limit:limit to number of scan BSS entries (per wiphy, default 1000) (int)
parm: ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
parm: cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)
##### module parameters #################
[ath9k]
blink: 0
bt_ant_diversity: 0
btcoex_enable: 0
led_active_high: -1
nohwcrypt: 0
ps_enable: 0
use_chanctx: 0
[mac80211]
beacon_loss_count: 7
ieee80211_default_rc_algo: minstrel_ht
max_nullfunc_tries: 2
max_probe_tries: 5
minstrel_vht_only: Y
probe_wait_ms: 500
[cfg80211]
bss_entries_limit: 1000
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00
##### /etc/modules ######################
##### modprobe options ##################
[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci
[/etc/modprobe.d/blacklist.conf]
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist i2c_i801
blacklist prism54
blacklist bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist amd76x_edac
[/etc/modprobe.d/blacklist-rare-network.conf]
alias net-pf-3 off
alias net-pf-6 off
alias net-pf-9 off
alias net-pf-11 off
alias net-pf-12 off
alias net-pf-19 off
alias net-pf-21 off
alias net-pf-36 off
[/etc/modprobe.d/intel-microcode-blacklist.conf]
blacklist microcode
[/etc/modprobe.d/iwlwifi.conf]
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211
[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en
##### rc.local ##########################
exit 0
##### pm-utils ##########################
##### udev rules ########################
##### dmesg #############################
[12640.454270] wlp2s0: authenticate with I' [AN1]>
[12640.467611] wlp2s0: send auth to I' [AN1]> (try 1/3)
[12640.496094] wlp2s0: authenticated
[12640.497423] wlp2s0: associate with I' [AN1]> (try 1/3)
[12640.514545] wlp2s0: RX AssocResp from I' [AN1]> (capab=0x411 status=0 aid=6)
[12640.514632] wlp2s0: associated
[12640.514685] IPv6: ADDRCONF(NETDEV_CHANGE): wlp2s0: link becomes ready
[13168.326131] wlp2s0: authenticate with I' [AN1]>
[13168.344934] wlp2s0: send auth to I' [AN1]> (try 1/3)
[13168.368555] wlp2s0: authenticated
[13168.369180] wlp2s0: associate with I' [AN1]> (try 1/3)
[13168.372961] wlp2s0: RX AssocResp from I' [AN1]> (capab=0x411 status=0 aid=6)
[13168.373070] wlp2s0: associated
[13290.512966] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
########## wireless info END ############
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