QCA9377 Ubuntu 16.04でのWiFi接続が不安定
Qualcomm Atheros QCA9377 802.11acワイヤレスネットワークアダプターを搭載したDellラップトップのWi-Fiに問題があります。 WiFiは5〜10分ごとにどこかでデータの送受信を停止します。ルーター（192.168.1.1）にも接続できません。ホットスポットに再接続するだけで、次の5分間Wi-Fiが機能します。
この迷惑な問題を修正する方法について何かアイデアはありますか？
ワイヤレス情報スクリプトの結果：
########## wireless info START ##########
Report from: 13 Mar 2019 11:32 EET +0200
Booted last: 13 Mar 2019 00:00 EET +0200
Script from: 22 Oct 2018 03:34 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 16.04.6 LTS
Release: 16.04
Codename: xenial
##### kernel ############################
Linux 4.15.0-46-generic #49~16.04.1-Ubuntu SMP Tue Feb 12 17:45:24 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
Parameters: ro, quiet, splash, vt.handoff=7
##### desktop ###########################
Ubuntu
##### lspci #############################
01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15)
Subsystem: Dell RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [1028:0839]
Kernel driver in use: r8169
02:00.0 Network controller [0280]: Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter [168c:0042] (rev 31)
Subsystem: Dell Device [1028:1810]
Kernel driver in use: ath10k_pci
##### lsusb #############################
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 0cf3:e009 Atheros Communications, Inc.
Bus 001 Device 004: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 003: ID 0bda:5769 Realtek Semiconductor Corp.
Bus 001 Device 002: ID 09da:32e2 A4Tech Co., Ltd.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA card info ##################
##### rfkill ############################
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: Dell-wifi: Wireless LAN
Soft blocked: no
Hard blocked: no
2: Dell-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
3: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
##### secure boot #######################
SecureBoot enabled
##### lsmod #############################
wl 6447104 0
ath10k_pci 45056 0
ath10k_core 360448 1 ath10k_pci
ath 28672 1 ath10k_core
mac80211 778240 1 ath10k_core
Dell_laptop 20480 0
cfg80211 622592 4 wl,ath,mac80211,ath10k_core
Dell_wmi 16384 0
Dell_smbios 24576 2 Dell_wmi,Dell_laptop
intel_wmi_Thunderbolt 16384 0
Dell_wmi_descriptor 16384 2 Dell_wmi,Dell_smbios
wmi_bmof 16384 0
sparse_keymap 16384 2 intel_hid,Dell_wmi
wmi 24576 5 intel_wmi_Thunderbolt,Dell_wmi,wmi_bmof,Dell_smbios,Dell_wmi_descriptor
video 45056 3 Dell_wmi,Dell_laptop,i915
##### interfaces ########################
[/etc/network/interfaces]
auto lo
iface lo inet loopback
##### ifconfig ##########################
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback <MAC address> brd <MAC address>
inet 127.0.0.1/8 scope Host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope Host
valid_lft forever preferred_lft forever
2: enp1s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000
link/ether <MAC 'enp1s0' [IF1]> brd <MAC address>
3: wlp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether <MAC 'wlp2s0' [IF2]> brd <MAC address>
inet 192.168.1.37/24 brd 192.168.1.255 scope global dynamic wlp2s0
valid_lft 7017sec preferred_lft 7017sec
inet6 fe80::<IP6 'wlp2s0' [IF2]>/64 scope link
valid_lft forever preferred_lft forever
##### iwconfig ##########################
lo no wireless extensions.
enp1s0 no wireless extensions.
wlp2s0 IEEE 802.11 ESSID:"BROSAITE KURITJ SOSEDI"
Mode:Managed Frequency:2.452 GHz Access Point: <MAC 'BROSAITE KURITJ SOSEDI' [AC1]>
Bit Rate=1 Mb/s Tx-Power=20 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:0 Invalid misc:10 Missed beacon:0
##### route #############################
default via 192.168.1.1 dev wlp2s0 proto static metric 600
169.254.0.0/16 dev wlp2s0 scope link metric 1000
192.168.1.0/24 dev wlp2s0 proto kernel scope link src 192.168.1.37 metric 600
##### resolv.conf #######################
[777 root '/etc/resolv.conf' -> '../run/resolvconf/resolv.conf']
nameserver 127.0.1.1
##### network managers ##################
Installed:
NetworkManager
Running:
root 952 1 0 10:24 ? 00:00:04 /usr/sbin/NetworkManager --no-daemon
##### NetworkManager info ###############
GENERAL.DEVICE: wlp2s0
GENERAL.TYPE: wifi
GENERAL.NM-TYPE: NMDeviceWifi
GENERAL.VENDOR: Qualcomm Atheros
GENERAL.PRODUCT: Sunrise Point-LP PCI Express Root Port
GENERAL.DRIVER: ath10k_pci
GENERAL.DRIVER-VERSION: 4.15.0-46-generic
GENERAL.FIRMWARE-VERSION: WLAN.TF.1.0-00267-1
GENERAL.HWADDR: <MAC 'wlp2s0' [IF2]>
GENERAL.MTU: 0
GENERAL.STATE: 100 (connected)
GENERAL.REASON: 0 (No reason given)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:1c.5/0000:02:00.0/net/wlp2s0
GENERAL.IP-IFACE: wlp2s0
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: BROSAITE KURITJ SOSEDI
GENERAL.CON-UUID: 59b82a3a-2767-4b9c-a58b-92badc3e0d30
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/9
GENERAL.METERED: no (guessed)
CAPABILITIES.CARRIER-DETECT: no
CAPABILITIES.SPEED: 1 Mb/s
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: yes/org/freedesktop/NetworkManager/Settings/{2,0}
CONNECTIONS.AVAILABLE-CONNECTIONS[1]: d268075f-33da-4964-9b82-ca01910c278f | HUAWEI-B315-69E1
CONNECTIONS.AVAILABLE-CONNECTIONS[2]: 59b82a3a-2767-4b9c-a58b-92badc3e0d30 | BROSAITE KURITJ SOSEDI
IP4.ADDRESS[1]: 192.168.1.37/24
IP4.GATEWAY: 192.168.1.1
IP4.ROUTE[1]: dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000
IP4.DNS[1]: 8.8.8.8
DHCP4.OPTION[1]: requested_routers = 1
DHCP4.OPTION[2]: requested_domain_search = 1
DHCP4.OPTION[3]: requested_time_offset = 1
DHCP4.OPTION[4]: requested_domain_name = 1
DHCP4.OPTION[5]: requested_rfc3442_classless_static_routes = 1
DHCP4.OPTION[6]: requested_broadcast_address = 1
DHCP4.OPTION[7]: requested_netbios_scope = 1
DHCP4.OPTION[8]: requested_wpad = 1
DHCP4.OPTION[9]: next_server = 0.0.0.0
DHCP4.OPTION[10]: expiry = 1552476585
DHCP4.OPTION[11]: requested_interface_mtu = 1
DHCP4.OPTION[12]: requested_subnet_mask = 1
DHCP4.OPTION[13]: routers = 192.168.1.1
DHCP4.OPTION[14]: dhcp_message_type = 5
DHCP4.OPTION[15]: ip_address = 192.168.1.37
DHCP4.OPTION[16]: requested_static_routes = 1
DHCP4.OPTION[17]: domain_name = zyxel.com
DHCP4.OPTION[18]: requested_domain_name_servers = 1
DHCP4.OPTION[19]: broadcast_address = 192.168.1.255
DHCP4.OPTION[20]: requested_ntp_servers = 1
DHCP4.OPTION[21]: requested_netbios_name_servers = 1
DHCP4.OPTION[22]: dhcp_lease_time = 7200
DHCP4.OPTION[23]: domain_name_servers = 192.168.1.1
DHCP4.OPTION[24]: requested_ms_classless_static_routes = 1
DHCP4.OPTION[25]: subnet_mask = 255.255.255.0
DHCP4.OPTION[26]: network_number = 192.168.1.0
DHCP4.OPTION[27]: requested_Host_name = 1
DHCP4.OPTION[28]: dhcp_server_identifier = 192.168.1.1
IP6.ADDRESS[1]: fe80::<IP6 'wlp2s0' [IF2]>/64
IP6.GATEWAY: fe80::1e74:dff:fea3:df73
GENERAL.DEVICE: enp1s0
GENERAL.TYPE: ethernet
GENERAL.NM-TYPE: NMDeviceEthernet
GENERAL.VENDOR: Realtek Semiconductor Co., Ltd.
GENERAL.PRODUCT: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
GENERAL.DRIVER: r8169
GENERAL.DRIVER-VERSION: 2.3LK-NAPI
GENERAL.FIRMWARE-VERSION:
GENERAL.HWADDR: <MAC 'enp1s0' [IF1]>
GENERAL.MTU: 1500
GENERAL.STATE: 20 (unavailable)
GENERAL.REASON: 2 (Device is now managed)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:1c.0/0000:01:00.0/net/enp1s0
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:
##### NetworkManager.state ##############
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
##### NetworkManager config #############
[[/etc/NetworkManager/conf.d/default-wifi-powersave-on.conf]]
[connection]
wifi.powersave = 2
[[/etc/NetworkManager/NetworkManager.conf]]
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=false
##### NetworkManager profiles ###########
[[/etc/NetworkManager/system-connections/HUAWEI-B315-69E1]] (600 root)
[connection] id=HUAWEI-B315-69E1 | type=wifi | permissions=
[wifi] mac-address=<MAC 'wlp2s0' [IF2]> | mac-address-blacklist= | ssid=HUAWEI-B315-69E1
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/BROSAITE KURITJ SOSEDI]] (600 root)
[connection] id=BROSAITE KURITJ SOSEDI | type=wifi | permissions=
[wifi] mac-address=<MAC 'wlp2s0' [IF2]> | mac-address-blacklist= | ssid=BROSAITE KURITJ SOSEDI
[ipv4] method=auto
[ipv6] method=ignore
##### Netplan config ####################
##### iw reg get ########################
Region: Europe/Riga (based on set time zone)
country LV: DFS-ETSI
(2402 - 2482 @ 40), (N/A, 20), (N/A)
(5170 - 5250 @ 80), (N/A, 20), (N/A)
(5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS
(5490 - 5710 @ 160), (N/A, 27), (0 ms), DFS
(57000 - 66000 @ 2160), (N/A, 40), (N/A)
##### module infos ######################
[wl]
filename: /lib/modules/4.15.0-46-generic/updates/dkms/wl.ko
license: MIXED/Proprietary
srcversion: 00D38A27B7E3C7B97C238FC
depends: cfg80211
retpoline: Y
name: wl
vermagic: 4.15.0-46-generic SMP mod_unload
parm: passivemode:int
parm: wl_txq_thresh:int
parm: oneonly:int
parm: piomode:int
parm: instance_base:int
parm: nompc:int
parm: intf_name:string
[ath10k_pci]
filename: /lib/modules/4.15.0-46-generic/kernel/drivers/net/wireless/ath/ath10k/ath10k_pci.ko
firmware: ath10k/QCA9377/hw1.0/board.bin
firmware: ath10k/QCA9377/hw1.0/firmware-5.bin
firmware: ath10k/QCA6174/hw3.0/board-2.bin
firmware: ath10k/QCA6174/hw3.0/board.bin
firmware: ath10k/QCA6174/hw3.0/firmware-6.bin
firmware: ath10k/QCA6174/hw3.0/firmware-5.bin
firmware: ath10k/QCA6174/hw3.0/firmware-4.bin
firmware: ath10k/QCA6174/hw2.1/board-2.bin
firmware: ath10k/QCA6174/hw2.1/board.bin
firmware: ath10k/QCA6174/hw2.1/firmware-5.bin
firmware: ath10k/QCA6174/hw2.1/firmware-4.bin
firmware: ath10k/QCA9887/hw1.0/board-2.bin
firmware: ath10k/QCA9887/hw1.0/board.bin
firmware: ath10k/QCA9887/hw1.0/firmware-5.bin
firmware: ath10k/QCA988X/hw2.0/board-2.bin
firmware: ath10k/QCA988X/hw2.0/board.bin
firmware: ath10k/QCA988X/hw2.0/firmware-5.bin
firmware: ath10k/QCA988X/hw2.0/firmware-4.bin
firmware: ath10k/QCA988X/hw2.0/firmware-3.bin
firmware: ath10k/QCA988X/hw2.0/firmware-2.bin
license: Dual BSD/GPL
description: Driver support for Qualcomm Atheros 802.11ac WLAN PCIe/AHB devices
author: Qualcomm Atheros
srcversion: 7F4BDE780A2E9E810538CB1
depends: ath10k_core
retpoline: Y
intree: Y
name: ath10k_pci
vermagic: 4.15.0-46-generic SMP mod_unload
parm: irq_mode:0: auto, 1: legacy, 2: msi (default: 0) (uint)
parm: reset_mode:0: auto, 1: warm only (default: 0) (uint)
[ath10k_core]
filename: /lib/modules/4.15.0-46-generic/kernel/drivers/net/wireless/ath/ath10k/ath10k_core.ko
license: Dual BSD/GPL
description: Core module for Qualcomm Atheros 802.11ac wireless LAN cards.
author: Qualcomm Atheros
srcversion: 4FA4F8DF5C220FBE3E53039
depends: mac80211,cfg80211,ath
retpoline: Y
intree: Y
name: ath10k_core
vermagic: 4.15.0-46-generic SMP mod_unload
parm: debug_mask:Debugging mask (uint)
parm: uart_print:Uart target debugging (bool)
parm: skip_otp:Skip otp failure for calibration in testmode (bool)
parm: cryptmode:Crypto mode: 0-hardware, 1-software (uint)
parm: rawmode:Use raw 802.11 frame datapath (bool)
[ath]
filename: /lib/modules/4.15.0-46-generic/kernel/drivers/net/wireless/ath/ath.ko
license: Dual BSD/GPL
description: Shared library for Atheros wireless LAN cards.
author: Atheros Communications
srcversion: 555BBBB9D4FCA58A05E7C0D
depends: cfg80211
retpoline: Y
intree: Y
name: ath
vermagic: 4.15.0-46-generic SMP mod_unload
[mac80211]
filename: /lib/modules/4.15.0-46-generic/kernel/net/mac80211/mac80211.ko
license: GPL
description: IEEE 802.11 subsystem
srcversion: 10B87D6D65DDD085D1326C9
depends: cfg80211
retpoline: Y
intree: Y
name: mac80211
vermagic: 4.15.0-46-generic SMP mod_unload
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/4.15.0-46-generic/kernel/net/wireless/cfg80211.ko
description: wireless configuration support
license: GPL
author: Johannes Berg
srcversion: 62FD05DCC5AEEA290640C3D
depends:
retpoline: Y
intree: Y
name: cfg80211
vermagic: 4.15.0-46-generic SMP mod_unload
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 #################
[ath10k_pci]
irq_mode: 0
reset_mode: 0
[ath10k_core]
cryptmode: 0
debug_mask: 0
rawmode: N
skip_otp: N
uart_print: N
[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/AMD64-microcode-blacklist.conf]
blacklist microcode
[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci
[/etc/modprobe.d/blacklist-bcm43.conf]
blacklist b43
blacklist b43legacy
blacklist ssb
blacklist bcm43xx
blacklist brcm80211
blacklist brcmfmac
blacklist brcmsmac
blacklist bcma
[/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]
options iwlwifi 11n_disable=1
options iwlwifi swcrypto=1
[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en
##### rc.local ##########################
exit 0
##### pm-utils ##########################
[/etc/pm/config.d/config] (644 root)
SUSPEND_MODULES="iwlwifi wlp2s0"
grep: /etc/pm/power.d/wireless_power_management_off: Permission denied
##### udev rules ########################
##### dmesg #############################
[ 1802.467199] ath10k_pci 0000:02:00.0: [24]: 0x809BF546 0x0040E7E8 0x00426470 0xC0985B3A
[ 1802.467207] ath10k_pci 0000:02:00.0: [28]: 0x809B90D8 0x0040E958 0x00000018 0x0042E9E8
[ 1802.467220] ath10k_pci 0000:02:00.0: [32]: 0x809B859A 0x0040E9A8 0x0040E9CC 0x00428D74
[ 1802.467228] ath10k_pci 0000:02:00.0: [36]: 0x8091D252 0x0040E9C8 0x00000000 0x00000001
[ 1802.467236] ath10k_pci 0000:02:00.0: [40]: 0x809EDD7B 0x0040EA78 0x00437544 0x00429428
[ 1802.467243] ath10k_pci 0000:02:00.0: [44]: 0x809EB6A6 0x0040EA98 0x00437544 0x00000001
[ 1802.467251] ath10k_pci 0000:02:00.0: [48]: 0x80911210 0x0040EAE8 0x00000010 0x004041D0
[ 1802.467259] ath10k_pci 0000:02:00.0: [52]: 0x80911154 0x0040EB28 0x00400000 0x00000000
[ 1802.467267] ath10k_pci 0000:02:00.0: [56]: 0x8091122D 0x0040EB48 0x00000000 0x00400600
[ 1802.467273] ath10k_pci 0000:02:00.0: Copy Engine register dump:
[ 1802.467295] ath10k_pci 0000:02:00.0: [00]: 0x00034400 5 5 3 3
[ 1802.467316] ath10k_pci 0000:02:00.0: [01]: 0x00034800 23 23 260 261
[ 1802.467336] ath10k_pci 0000:02:00.0: [02]: 0x00034c00 10 10 73 74
[ 1802.467357] ath10k_pci 0000:02:00.0: [03]: 0x00035000 16 16 17 16
[ 1802.467377] ath10k_pci 0000:02:00.0: [04]: 0x00035400 5255 5255 133 69
[ 1802.467398] ath10k_pci 0000:02:00.0: [05]: 0x00035800 0 0 0 0
[ 1802.467419] ath10k_pci 0000:02:00.0: [06]: 0x00035c00 27 27 27 27
[ 1802.467440] ath10k_pci 0000:02:00.0: [07]: 0x00036000 1 1 1 1
[ 1803.352671] ath10k_pci 0000:02:00.0: device successfully recovered
[ 1982.242540] wlp2s0: AP <MAC 'BROSAITE KURITJ SOSEDI' [AC1]> changed bandwidth, new config is 2452 MHz, width 1 (2452/0 MHz)
[ 2001.274565] wlp2s0: deauthenticating from <MAC 'BROSAITE KURITJ SOSEDI' [AC1]> by local choice (Reason: 3=DEAUTH_LEAVING)
[ 2005.048208] wlp2s0: authenticate with <MAC 'BROSAITE KURITJ SOSEDI' [AC1]>
[ 2005.084368] wlp2s0: send auth to <MAC 'BROSAITE KURITJ SOSEDI' [AC1]> (try 1/3)
[ 2005.088337] wlp2s0: authenticated
[ 2005.092643] wlp2s0: associate with <MAC 'BROSAITE KURITJ SOSEDI' [AC1]> (try 1/3)
[ 2005.105414] wlp2s0: RX AssocResp from <MAC 'BROSAITE KURITJ SOSEDI' [AC1]> (capab=0x431 status=0 aid=4)
[ 2005.107983] wlp2s0: associated
[ 3627.828715] wlp2s0: AP <MAC 'BROSAITE KURITJ SOSEDI' [AC1]> changed bandwidth, new config is 2452 MHz, width 2 (2442/0 MHz)
[ 3627.865407] ath10k_pci 0000:02:00.0: firmware crashed! (guid 710a848a-3e76-4e4c-83de-ea74afd03074)
[ 3627.865433] ath10k_pci 0000:02:00.0: qca9377 hw1.1 target 0x05020001 chip_id 0x003821ff sub 1028:1810
[ 3627.865439] ath10k_pci 0000:02:00.0: kconfig debug 0 debugfs 1 tracing 1 dfs 0 testmode 0
[ 3627.866295] ath10k_pci 0000:02:00.0: firmware ver WLAN.TF.1.0-00267-1 api 5 features ignore-otp crc32 79cea2c7
[ 3627.866314] ath10k_pci 0000:02:00.0: board_file api 1 bmi_id N/A crc32 544289f7
[ 3627.866320] ath10k_pci 0000:02:00.0: htt-ver 3.1 wmi-op 4 htt-op 3 cal otp max-sta 32 raw 0 hwcrypto 1
[ 3627.868335] ath10k_pci 0000:02:00.0: firmware register dump:
[ 3627.868347] ath10k_pci 0000:02:00.0: [00]: 0x05020001 0x000015B3 0x00985B3A 0x00955B31
[ 3627.868355] ath10k_pci 0000:02:00.0: [04]: 0x00985B3A 0x00060730 0x00000004 0x00000001
[ 3627.868362] ath10k_pci 0000:02:00.0: [08]: 0x00955A00 0x00438830 0x00450888 0x00420970
[ 3627.868370] ath10k_pci 0000:02:00.0: [12]: 0x00000009 0x00000000 0x00952CD0 0x00952CE6
[ 3627.868377] ath10k_pci 0000:02:00.0: [16]: 0x00952CC4 0x0091080D 0x00000000 0x00000000
[ 3627.868384] ath10k_pci 0000:02:00.0: [20]: 0x40985B3A 0x0040E788 0x00400000 0x00421888
[ 3627.868392] ath10k_pci 0000:02:00.0: [24]: 0x809BF546 0x0040E7E8 0x00426470 0xC0985B3A
[ 3627.868403] ath10k_pci 0000:02:00.0: [28]: 0x809B90D8 0x0040E958 0x00000018 0x0042EA0C
[ 3627.868410] ath10k_pci 0000:02:00.0: [32]: 0x809B859A 0x0040E9A8 0x0040E9CC 0x00428D74
[ 3627.868417] ath10k_pci 0000:02:00.0: [36]: 0x8091D252 0x0040E9C8 0x00000000 0x00000001
[ 3627.868424] ath10k_pci 0000:02:00.0: [40]: 0x809EDD7B 0x0040EA78 0x00437544 0x00429428
[ 3627.868431] ath10k_pci 0000:02:00.0: [44]: 0x809EB6A6 0x0040EA98 0x00437544 0x00000001
[ 3627.868438] ath10k_pci 0000:02:00.0: [48]: 0x80911210 0x0040EAE8 0x00000010 0x004041D0
[ 3627.868445] ath10k_pci 0000:02:00.0: [52]: 0x80911154 0x0040EB28 0x00400000 0x00000000
[ 3627.868452] ath10k_pci 0000:02:00.0: [56]: 0x8091122D 0x0040EB48 0x00000000 0x00400600
[ 3627.868458] ath10k_pci 0000:02:00.0: Copy Engine register dump:
[ 3627.868478] ath10k_pci 0000:02:00.0: [00]: 0x00034400 5 5 3 3
[ 3627.868499] ath10k_pci 0000:02:00.0: [01]: 0x00034800 14 14 507 508
[ 3627.868519] ath10k_pci 0000:02:00.0: [02]: 0x00034c00 32 32 95 96
[ 3627.868539] ath10k_pci 0000:02:00.0: [03]: 0x00035000 11 11 12 11
[ 3627.868558] ath10k_pci 0000:02:00.0: [04]: 0x00035400 7415 7415 189 125
[ 3627.868578] ath10k_pci 0000:02:00.0: [05]: 0x00035800 0 0 0 0
[ 3627.868597] ath10k_pci 0000:02:00.0: [06]: 0x00035c00 29 29 29 29
[ 3627.868617] ath10k_pci 0000:02:00.0: [07]: 0x00036000 1 1 1 1
[ 3628.755443] ath10k_pci 0000:02:00.0: device successfully recovered
[ 3807.542243] wlp2s0: AP <MAC 'BROSAITE KURITJ SOSEDI' [AC1]> changed bandwidth, new config is 2452 MHz, width 1 (2452/0 MHz)
[ 3911.400608] wlp2s0: deauthenticating from <MAC 'BROSAITE KURITJ SOSEDI' [AC1]> by local choice (Reason: 3=DEAUTH_LEAVING)
[ 3915.193118] wlp2s0: authenticate with <MAC 'BROSAITE KURITJ SOSEDI' [AC1]>
[ 3915.229028] wlp2s0: send auth to <MAC 'BROSAITE KURITJ SOSEDI' [AC1]> (try 1/3)
[ 3915.230695] wlp2s0: authenticated
[ 3915.238183] wlp2s0: associate with <MAC 'BROSAITE KURITJ SOSEDI' [AC1]> (try 1/3)
[ 3915.242594] wlp2s0: RX AssocResp from <MAC 'BROSAITE KURITJ SOSEDI' [AC1]> (capab=0x431 status=0 aid=4)
[ 3915.244871] wlp2s0: associated
########## wireless info END ############
ルーターの設定を変更して問題を修正しました。
チャネル幅を自動から20MHzに変更しました。
それでも問題が解決しない場合や、チャネル幅を自動に戻したい場合：Linuxカーネル4.19以降をインストールしてみてください。それは私の問題を修正しました...
http://ubuntuhandbook.org/index.php/2018/10/linux-kernel-4-19-released-install-ubuntu/