Ubuntu 14.04（Realtek RTL8188EE）を新規インストールした後、ワイヤレス接続が遅い/不整合になる
私は開発ビルドを使用してUbuntu 14.04を1か月以上問題なく実行しています。その後、公式リリース日にアップグレードし、問題が始まりました。欲求不満になり、新規インストールを行っても、まだ同じ問題があります。
ワイヤレスネットワークには問題なく接続できますが、接続強度と速度は非常に散発的です。それは波のように非常にゆっくりから通常に非常に速く振動するようです。以下のルーターでのpingの結果はこれを示しているかもしれません。
Pingルーター、通常から低負荷：
PING 10.0.0.1 (10.0.0.1) 56(84) bytes of data.
64 bytes from 10.0.0.1: icmp_seq=5 ttl=64 time=1.73 ms
64 bytes from 10.0.0.1: icmp_seq=6 ttl=64 time=1.69 ms
64 bytes from 10.0.0.1: icmp_seq=7 ttl=64 time=5.71 ms
64 bytes from 10.0.0.1: icmp_seq=8 ttl=64 time=2.10 ms
64 bytes from 10.0.0.1: icmp_seq=9 ttl=64 time=14.9 ms
64 bytes from 10.0.0.1: icmp_seq=10 ttl=64 time=1.41 ms
64 bytes from 10.0.0.1: icmp_seq=11 ttl=64 time=1.48 ms
64 bytes from 10.0.0.1: icmp_seq=12 ttl=64 time=1.38 ms
64 bytes from 10.0.0.1: icmp_seq=13 ttl=64 time=15.1 ms
64 bytes from 10.0.0.1: icmp_seq=14 ttl=64 time=3.32 ms
64 bytes from 10.0.0.1: icmp_seq=15 ttl=64 time=1.86 ms
64 bytes from 10.0.0.1: icmp_seq=17 ttl=64 time=521 ms
64 bytes from 10.0.0.1: icmp_seq=18 ttl=64 time=1.41 ms
64 bytes from 10.0.0.1: icmp_seq=19 ttl=64 time=1.37 ms
64 bytes from 10.0.0.1: icmp_seq=20 ttl=64 time=1.81 ms
64 bytes from 10.0.0.1: icmp_seq=21 ttl=64 time=1.37 ms
64 bytes from 10.0.0.1: icmp_seq=22 ttl=64 time=5.79 ms
64 bytes from 10.0.0.1: icmp_seq=23 ttl=64 time=28.1 ms
64 bytes from 10.0.0.1: icmp_seq=24 ttl=64 time=4307 ms
64 bytes from 10.0.0.1: icmp_seq=25 ttl=64 time=3307 ms
64 bytes from 10.0.0.1: icmp_seq=29 ttl=64 time=104 ms
64 bytes from 10.0.0.1: icmp_seq=30 ttl=64 time=1012 ms
64 bytes from 10.0.0.1: icmp_seq=31 ttl=64 time=4.00 ms
64 bytes from 10.0.0.1: icmp_seq=32 ttl=64 time=1.40 ms
64 bytes from 10.0.0.1: icmp_seq=33 ttl=64 time=1.38 ms
64 bytes from 10.0.0.1: icmp_seq=34 ttl=64 time=1008 ms
64 bytes from 10.0.0.1: icmp_seq=35 ttl=64 time=625 ms
64 bytes from 10.0.0.1: icmp_seq=36 ttl=64 time=5.73 ms
64 bytes from 10.0.0.1: icmp_seq=37 ttl=64 time=22.1 ms
64 bytes from 10.0.0.1: icmp_seq=38 ttl=64 time=1110 ms
64 bytes from 10.0.0.1: icmp_seq=39 ttl=64 time=519 ms
64 bytes from 10.0.0.1: icmp_seq=40 ttl=64 time=4.82 ms
64 bytes from 10.0.0.1: icmp_seq=41 ttl=64 time=3.03 ms
64 bytes from 10.0.0.1: icmp_seq=42 ttl=64 time=1009 ms
64 bytes from 10.0.0.1: icmp_seq=44 ttl=64 time=105 ms
64 bytes from 10.0.0.1: icmp_seq=45 ttl=64 time=3.03 ms
64 bytes from 10.0.0.1: icmp_seq=46 ttl=64 time=1008 ms
64 bytes from 10.0.0.1: icmp_seq=47 ttl=64 time=1.67 ms
64 bytes from 10.0.0.1: icmp_seq=48 ttl=64 time=1001 ms
64 bytes from 10.0.0.1: icmp_seq=49 ttl=64 time=509 ms
64 bytes from 10.0.0.1: icmp_seq=50 ttl=64 time=1.97 ms
64 bytes from 10.0.0.1: icmp_seq=51 ttl=64 time=1.39 ms
64 bytes from 10.0.0.1: icmp_seq=52 ttl=64 time=502 ms
^C
--- 10.0.0.1 ping statistics ---
52 packets transmitted, 43 received, 17% packet loss, time 51102ms
rtt min/avg/max/mdev = 1.371/390.573/4307.355/845.151 ms, pipe 5
ワイヤレス情報：
########## wireless info START ##########
##### release #####
Distributor ID: Ubuntu
Description: Ubuntu 14.04 LTS
Release: 14.04
Codename: trusty
##### kernel #####
Linux kyle-pc 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
##### lspci #####
02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8188EE Wireless Network Adapter [10ec:8179] (rev 01)
Subsystem: Realtek Semiconductor Co., Ltd. Device [10ec:0181]
Kernel driver in use: rtl8188ee
03:00.0 Ethernet controller [0200]: Qualcomm Atheros QCA8171 Gigabit Ethernet [1969:10a1] (rev 10)
Subsystem: Toshiba America Info Systems Device [1179:fa40]
Kernel driver in use: alx
##### lsusb #####
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 005: ID 13d3:5606 IMC Networks
Bus 001 Device 008: ID 058f:6366 Alcor Micro Corp. Multi Flash Reader
Bus 001 Device 007: ID 046d:c517 Logitech, Inc. LX710 Cordless Desktop Laser
Bus 001 Device 006: ID 058f:6254 Alcor Micro Corp. USB Hub
Bus 001 Device 004: ID 2001:f103 D-Link Corp. DUB-H7 7-port USB 2.0 hub
Bus 001 Device 003: ID 058f:6366 Alcor Micro Corp. Multi Flash Reader
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 002: ID 1058:07a8 Western Digital Technologies, Inc.
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA Card Info #####
##### rfkill #####
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
##### iw reg get #####
country US:
(2402 - 2472 @ 40), (3, 27)
(5170 - 5250 @ 40), (3, 17)
(5250 - 5330 @ 40), (3, 20), DFS
(5490 - 5600 @ 40), (3, 20), DFS
(5650 - 5710 @ 40), (3, 20), DFS
(5735 - 5835 @ 40), (3, 30)
(57240 - 63720 @ 2160), (N/A, 40)
##### interfaces #####
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
##### iwconfig #####
wlan0 IEEE 802.11bgn ESSID:"HOME-3B12"
Mode:Managed Frequency:2.462 GHz Access Point: <MAC address removed>
Bit Rate=65 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr=2347 B Fragment thr:off
Power Management:off
Link Quality=59/70 Signal level=-51 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
##### route #####
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 10.0.0.1 0.0.0.0 UG 0 0 0 wlan0
10.0.0.0 0.0.0.0 255.255.255.0 U 9 0 0 wlan0
##### resolv.conf #####
nameserver 127.0.1.1
search hsd1.wa.comcast.net
##### nm-tool #####
NetworkManager Tool
State: connected (global)
- Device: eth0 -----------------------------------------------------------------
Type: Wired
Driver: alx
State: disconnected
Default: no
HW Address: <MAC address removed>
Capabilities:
Carrier Detect: yes
Speed: 100 Mb/s
Wired Properties
Carrier: on
- Device: wlan0 [HOME-3B12] ---------------------------------------------------
Type: 802.11 WiFi
Driver: rtl8188ee
State: connected
Default: yes
HW Address: <MAC address removed>
Capabilities:
Speed: 65 Mb/s
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points (* = current AP)
Heather: Infra, <MAC address removed>, Freq 2422 MHz, Rate 54 Mb/s, Strength 34 WPA2
13401: Infra, <MAC address removed>, Freq 2437 MHz, Rate 54 Mb/s, Strength 27 WPA2
nariya: Infra, <MAC address removed>, Freq 2412 MHz, Rate 54 Mb/s, Strength 100 WPA WPA2
2WIRE826: Infra, <MAC address removed>, Freq 2462 MHz, Rate 54 Mb/s, Strength 74 WEP
belkin.f9c: Infra, <MAC address removed>, Freq 2437 MHz, Rate 54 Mb/s, Strength 27 WPA2
Heather_VAP: Infra, <MAC address removed>, Freq 2422 MHz, Rate 54 Mb/s, Strength 54 WPA2
belkin.f9c.guests: Infra, <MAC address removed>, Freq 2437 MHz, Rate 54 Mb/s, Strength 27
test: Infra, <MAC address removed>, Freq 2462 MHz, Rate 54 Mb/s, Strength 46 WPA2
*HOME-3B12: Infra, <MAC address removed>, Freq 2462 MHz, Rate 54 Mb/s, Strength 66 WPA WPA2
IPv4 Settings:
Address: 10.0.0.3
Prefix: 24 (255.255.255.0)
Gateway: 10.0.0.1
DNS: 75.75.75.75
DNS: 75.75.76.76
##### NetworkManager.state #####
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
##### NetworkManager.conf #####
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=false
##### iwlist #####
##### iwlist channel #####
wlan0 11 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
Current Frequency:2.462 GHz (Channel 11)
##### lsmod #####
rtl8188ee 89601 0
rtl_pci 26690 1 rtl8188ee
rtlwifi 63475 2 rtl_pci,rtl8188ee
mac80211 626489 3 rtl_pci,rtlwifi,rtl8188ee
cfg80211 484040 2 mac80211,rtlwifi
##### modinfo #####
filename: /lib/modules/3.13.0-24-generic/kernel/drivers/net/wireless/rtlwifi/rtl8188ee/rtl8188ee.ko
firmware: rtlwifi/rtl8188efw.bin
description: Realtek 8188E 802.11n PCI wireless
license: GPL
author: Larry Finger <[email protected]>
author: Realtek WlanFAE <[email protected]>
author: zhiyuan_yang <[email protected]>
srcversion: 1B8E36556B30AA35325F55D
alias: pci:v000010ECd00008179sv*sd*bc*sc*i*
depends: rtlwifi,rtl_pci,mac80211
intree: Y
vermagic: 3.13.0-24-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: <MAC address removed>:47:4B:C5:C4:31:20:88:0C:1B:94:A5:39:F4:31
sig_hashalgo: sha512
parm: swenc:Set to 1 for software crypto (default 0)
(bool)
parm: ips:Set to 0 to not use link power save (default 1)
(bool)
parm: swlps:Set to 1 to use SW control power save (default 0)
(bool)
parm: fwlps:Set to 1 to use FW control power save (default 1)
(bool)
parm: debug:Set debug level (0-5) (default 0) (int)
filename: /lib/modules/3.13.0-24-generic/kernel/drivers/net/wireless/rtlwifi/rtl_pci.ko
description: PCI basic driver for rtlwifi
license: GPL
author: Larry Finger <[email protected]>
author: Realtek WlanFAE <[email protected]>
author: lizhaoming <[email protected]>
srcversion: B6B8AA929B5F982954A6DE1
depends: mac80211,rtlwifi
intree: Y
vermagic: 3.13.0-24-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: <MAC address removed>:47:4B:C5:C4:31:20:88:0C:1B:94:A5:39:F4:31
sig_hashalgo: sha512
filename: /lib/modules/3.13.0-24-generic/kernel/drivers/net/wireless/rtlwifi/rtlwifi.ko
description: Realtek 802.11n PCI wireless core
license: GPL
author: Larry Finger <[email protected]>
author: Realtek WlanFAE <[email protected]>
author: lizhaoming <[email protected]>
srcversion: C21FC2F90947540319DE390
depends: mac80211,cfg80211
intree: Y
vermagic: 3.13.0-24-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: <MAC address removed>:47:4B:C5:C4:31:20:88:0C:1B:94:A5:39:F4:31
sig_hashalgo: sha512
##### modules #####
lp
rtc
##### blacklist #####
[/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/fbdev-blacklist.conf]
blacklist arkfb
blacklist aty128fb
blacklist atyfb
blacklist radeonfb
blacklist cirrusfb
blacklist cyber2000fb
blacklist gx1fb
blacklist gxfb
blacklist kyrofb
blacklist matroxfb_base
blacklist mb862xxfb
blacklist neofb
blacklist nvidiafb
blacklist pm2fb
blacklist pm3fb
blacklist s3fb
blacklist savagefb
blacklist sisfb
blacklist tdfxfb
blacklist tridentfb
blacklist viafb
blacklist vt8623fb
##### udev rules #####
# PCI device 0x1969:0x10a1 (alx)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC address removed>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x10ec:0x8179 (rtl8188ee)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC address removed>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"
##### dmesg #####
[ 9.624682] rtl8188ee: Using firmware rtlwifi/rtl8188efw.bin
[ 9.624741] rtl8188ee 0000:02:00.0: irq 45 for MSI/MSI-X
[ 9.924965] ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
[ 9.925132] rtlwifi: wireless switch is on
[ 18.918325] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 18.918581] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 43.903719] wlan0: authenticate with <MAC address removed>
[ 43.913895] wlan0: send auth to <MAC address removed> (try 1/3)
[ 43.915033] wlan0: authenticated
[ 43.917383] wlan0: associate with <MAC address removed> (try 1/3)
[ 43.932789] wlan0: RX AssocResp from <MAC address removed> (capab=0x411 status=0 aid=2)
[ 43.932928] wlan0: associated
[ 43.932935] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 59.926537] wlan0: deauthenticating from <MAC address removed> by local choice (reason=3)
[ 61.431876] wlan0: authenticate with <MAC address removed>
[ 61.451881] wlan0: send auth to <MAC address removed> (try 1/3)
[ 61.453694] wlan0: authenticated
[ 61.455569] wlan0: associate with <MAC address removed> (try 1/3)
[ 61.469978] wlan0: RX AssocResp from <MAC address removed> (capab=0x411 status=0 aid=2)
[ 61.470130] wlan0: associated
[ 685.299878] wlan0: deauthenticating from <MAC address removed> by local choice (reason=3)
[ 686.755325] wlan0: authenticate with <MAC address removed>
[ 686.764888] wlan0: send auth to <MAC address removed> (try 1/3)
[ 686.766551] wlan0: authenticated
[ 686.770599] wlan0: associate with <MAC address removed> (try 1/3)
[ 686.775232] wlan0: RX AssocResp from <MAC address removed> (capab=0x411 status=0 aid=3)
[ 686.775395] wlan0: associated
[ 732.676315] wlan0: deauthenticating from <MAC address removed> by local choice (reason=3)
[ 733.622817] wlan0: authenticate with <MAC address removed>
[ 733.642409] wlan0: send auth to <MAC address removed> (try 1/3)
[ 733.644589] wlan0: authenticated
[ 733.646068] wlan0: associate with <MAC address removed> (try 1/3)
[ 733.660412] wlan0: RX AssocResp from <MAC address removed> (capab=0x411 status=0 aid=2)
[ 733.660569] wlan0: associated
[ 768.243619] wlan0: deauthenticating from <MAC address removed> by local choice (reason=3)
[ 963.122973] wlan0: authenticate with <MAC address removed>
[ 963.142715] wlan0: send auth to <MAC address removed> (try 1/3)
[ 963.144191] wlan0: authenticated
[ 963.146329] wlan0: associate with <MAC address removed> (try 1/3)
[ 963.162557] wlan0: RX AssocResp from <MAC address removed> (capab=0x411 status=0 aid=6)
[ 963.162723] wlan0: associated
[ 1008.407427] wlan0: Connection to AP <MAC address removed> lost
[ 1010.458107] wlan0: authenticate with <MAC address removed>
[ 1010.477578] wlan0: send auth to <MAC address removed> (try 1/3)
[ 1010.478699] wlan0: authenticated
[ 1010.481203] wlan0: associate with <MAC address removed> (try 1/3)
[ 1010.495617] wlan0: RX AssocResp from <MAC address removed> (capab=0x411 status=0 aid=6)
[ 1010.495788] wlan0: associated
[ 1284.910957] wlan0: deauthenticating from <MAC address removed> by local choice (reason=3)
[ 1607.970540] wlan0: authenticate with <MAC address removed>
[ 1607.979974] wlan0: send auth to <MAC address removed> (try 1/3)
[ 1607.982241] wlan0: authenticated
[ 1607.985604] wlan0: associate with <MAC address removed> (try 1/3)
[ 1607.989180] wlan0: RX AssocResp from <MAC address removed> (capab=0x411 status=0 aid=3)
[ 1607.989347] wlan0: associated
[ 1641.945884] wlan0: deauthenticating from <MAC address removed> by local choice (reason=3)
[ 1643.299913] wlan0: authenticate with <MAC address removed>
[ 1643.319630] wlan0: send auth to <MAC address removed> (try 1/3)
[ 1643.321682] wlan0: authenticated
[ 1643.323277] wlan0: associate with <MAC address removed> (try 1/3)
[ 1643.338946] wlan0: RX AssocResp from <MAC address removed> (capab=0x411 status=0 aid=5)
[ 1643.339113] wlan0: associated
########## wireless info END ############
編集：
私のラップトップはToshiba Satellite S55-A5294です。
カーネルを3.14.1および3.14.2（現在使用中）にアップグレードした後、ワイヤレスが時々使えるようになりました（これは嬉しいことです）。
約70％の時間でパケットの0％を失い、残りの30％でパケット損失の1-100％を失います。
ワイヤレスネットワークに再接続することはこれまで見つけた唯一の解決策ですが、常に問題が解決するわけではありません。
/ var/log/syslog、問題が発生しているとき
パケットが100％失われたとき
tail -f /var/log/syslog
May 5 13:05:19 kyle-pc NetworkManager[1107]: <info> (wlan0): supplicant interface state: associating -> associated
May 5 13:05:20 kyle-pc NetworkManager[1107]: <info> (wlan0): supplicant interface state: associated -> 4-way handshake
May 5 13:05:20 kyle-pc wpa_supplicant[12275]: wlan0: WPA: Key negotiation completed with 00:1d:d2:60:3b:10 [PTK=CCMP GTK=TKIP]
May 5 13:05:20 kyle-pc wpa_supplicant[12275]: wlan0: CTRL-EVENT-CONNECTED - Connection to 00:1d:d2:60:3b:10 completed [id=0 id_str=]
May 5 13:05:20 kyle-pc NetworkManager[1107]: <info> (wlan0): supplicant interface state: 4-way handshake -> completed
May 5 13:05:59 kyle-pc wpa_supplicant[12275]: wlan0: CTRL-EVENT-SCAN-STARTED
May 5 13:04:52 kyle-pc whoopsie[1332]: message repeated 10 times: [ online]
May 5 13:06:11 kyle-pc whoopsie[1332]: offline
May 5 13:06:31 kyle-pc whoopsie[1332]: offline
May 5 13:06:56 kyle-pc whoopsie[1332]: online
May 5 13:08:16 kyle-pc whoopsie[1332]: message repeated 5 times: [ online]
May 5 13:09:16 kyle-pc whoopsie[1332]: offline
May 5 13:09:21 kyle-pc whoopsie[1332]: online
パケットの1〜99％を失う場合
tail -f /var/log/syslog
May 5 13:29:48 kyle-pc NetworkManager[1107]: <info> Activation (wlan0) successful, device activated.
May 5 13:29:48 kyle-pc whoopsie[1332]: message repeated 7 times: [ offline]
May 5 13:29:49 kyle-pc whoopsie[1332]: online
May 5 13:29:54 kyle-pc ntpdate[12460]: adjust time server 91.189.89.199 offset 0.012340 sec
May 5 13:30:05 kyle-pc wpa_supplicant[12275]: wlan0: CTRL-EVENT-SCAN-STARTED
May 5 13:30:08 kyle-pc wpa_supplicant[12275]: nl80211: send_and_recv->nl_recvmsgs failed: -33
May 5 13:30:48 kyle-pc wpa_supplicant[12275]: wlan0: CTRL-EVENT-SCAN-STARTED
May 5 13:30:51 kyle-pc wpa_supplicant[12275]: nl80211: send_and_recv->nl_recvmsgs failed: -33
May 5 13:31:51 kyle-pc wpa_supplicant[12275]: wlan0: CTRL-EVENT-SCAN-STARTED
May 5 13:33:14 kyle-pc wpa_supplicant[12275]: wlan0: CTRL-EVENT-SCAN-STARTED
May 5 13:33:17 kyle-pc wpa_supplicant[12275]: nl80211: send_and_recv->nl_recvmsgs failed: -33
May 5 13:34:46 kyle-pc wpa_supplicant[12275]: wlan0: CTRL-EVENT-SCAN-STARTED
May 5 13:36:57 kyle-pc wpa_supplicant[12275]: message repeated 2 times: [ wlan0: CTRL-EVENT-SCAN-STARTED ]
May 5 13:37:00 kyle-pc wpa_supplicant[12275]: nl80211: send_and_recv->nl_recvmsgs failed: -33
May 5 13:38:57 kyle-pc wpa_supplicant[12275]: wlan0: CTRL-EVENT-SCAN-STARTED
May 5 13:39:00 kyle-pc wpa_supplicant[12275]: nl80211: send_and_recv->nl_recvmsgs failed: -33
May 5 13:39:46 kyle-pc wpa_supplicant[12275]: wlan0: CTRL-EVENT-SCAN-STARTED
May 5 13:40:57 kyle-pc wpa_supplicant[12275]: wlan0: CTRL-EVENT-SCAN-STARTED
May 5 13:41:00 kyle-pc wpa_supplicant[12275]: nl80211: send_and_recv->nl_recvmsgs failed: -33
May 5 13:42:57 kyle-pc wpa_supplicant[12275]: wlan0: CTRL-EVENT-SCAN-STARTED
May 5 13:43:00 kyle-pc wpa_supplicant[12275]: nl80211: send_and_recv->nl_recvmsgs failed: -33
May 5 13:44:46 kyle-pc wpa_supplicant[12275]: wlan0: CTRL-EVENT-SCAN-STARTED
May 5 13:44:57 kyle-pc wpa_supplicant[12275]: wlan0: CTRL-EVENT-SCAN-STARTED
May 5 13:45:00 kyle-pc wpa_supplicant[12275]: nl80211: send_and_recv->nl_recvmsgs failed: -33
May 5 13:46:57 kyle-pc wpa_supplicant[12275]: wlan0: CTRL-EVENT-SCAN-STARTED
May 5 13:48:57 kyle-pc wpa_supplicant[12275]: wlan0: CTRL-EVENT-SCAN-STARTED
May 5 13:49:00 kyle-pc wpa_supplicant[12275]: nl80211: send_and_recv->nl_recvmsgs failed: -33
これらのログがこの問題の原因を示しているのか、それとも単に発生しているという通知なのかわかりません。
どんなアイデアでも大歓迎です。
これも私が経験している問題です。それを解決するには、カーネルを手動でアップグレードする必要があります。個人的に3.14.1にアップグレードしました。
カーネルを手動でアップグレードするためのガイドは次のとおりです。 Distro-upgradeなしでカーネルを最新のメインラインバージョンに更新する方法
編集：私もこれを投稿したときに気づきませんでしたが、私はあなたと同じ無線カードを持っているので、これは動作するはずです。他のカードについては保証できません。
ルーターを固定チャネル（私の場合は3）に変更する問題を解決しました。
ドライバーの変更、カーネルの更新など多くのことを試してみましたが、それは私の範囲の多くのワイヤレスネットワークであり、使用している3つのネットワークのいずれかでのみこの問題が発生したため、これが私のネットワークと競合する可能性があることに気付きました他の2つでは問題ありません。
これは、Ubuntu 14.04 64、ノートブックDell vostro 5470にありました。