我在 Ubuntu 13.10 上使用 wifi 时遇到了一些问题。我以前从未使用过 Ubuntu 或 Linux。我刚刚在新电脑上安装了它，并且使用 TP-Link WN822N USB 无线网络适配器来运行我的互联网。问题是我的互联网一直处于等待状态...也就是说，连接在那里并且似乎在工作，但是大约 5 分钟后它就会停止执行任何操作（实际上并没有掉线）。我只是断开连接，重新连接，然后它又可以工作 5 分钟，重复此过程。
有人知道我该如何解决这个问题吗？
>> cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=13.10
DISTRIB_CODENAME=saucy
DISTRIB_DESCRIPTION="Ubuntu 13.10"
>> lsusb
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 003: ID 0bda:8178 Realtek Semiconductor Corp. RTL8192CU 802.11n WLAN Adapter
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 011 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 010 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 009 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 008 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>> lspci -k -nn | grep -A 3 -i net
02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 09)
Subsystem: ASUSTeK Computer Inc. P8H77-I Motherboard [1043:8505]
Kernel driver in use: r8169
03:00.0 USB controller [0c03]: ASMedia Technology Inc. ASM1042 SuperSpeed USB Host Controller [1b21:1042]
>> sudo lshw -C network
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:02:00.0
logical name: eth0
version: 09
serial: bc:ee:7b:5c:b8:11
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=rtl8168f-1_0.0.5 06/18/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:86 ioport:d000(size=256) memory:d0004000-d0004fff memory:d0000000-d0003fff
*-network
description: Wireless interface
physical id: 1
bus info: usb@1:5
logical name: wlan0
serial: 10:fe:ed:17:55:9a
capabilities: ethernet physical wireless
configuration: broadcast=yes driver=rtl8192cu driverversion=3.11.0-15-generic firmware=N/A ip=192.168.0.11 link=yes multicast=yes wireless=IEEE 802.11bgn
>> lsmod
Module Size Used by
parport_pc 32701 0
ppdev 17671 0
rfcomm 69130 0
bnep 19704 2
bluetooth 372041 10 bnep,rfcomm
nls_iso8859_1 12713 1
snd_hda_codec_hdmi 41117 1
arc4 12608 2
kvm_amd 59987 0
kvm 431720 1 kvm_amd
crct10dif_pclmul 14289 0
crc32_pclmul 13113 0
ghash_clmulni_intel 13259 0
aesni_intel 55624 2
aes_x86_64 17131 1 aesni_intel
lrw 13286 1 aesni_intel
gf128mul 14951 1 lrw
glue_helper 13990 1 aesni_intel
ablk_helper 13597 1 aesni_intel
cryptd 20359 3 ghash_clmulni_intel,aesni_intel,ablk_helper
rtl8192cu 67723 0
rtl_usb 18448 1 rtl8192cu
rtlwifi 63229 2 rtl_usb,rtl8192cu
rtl8192c_common 48877 1 rtl8192cu
mac80211 597268 3 rtl_usb,rtlwifi,rtl8192cu
cfg80211 480503 2 mac80211,rtlwifi
joydev 17377 0
eeepc_wmi 13151 0
asus_wmi 24191 1 eeepc_wmi
sparse_keymap 13948 1 asus_wmi
video 19318 1 asus_wmi
mxm_wmi 13021 0
snd_hda_codec_realtek 55704 1
snd_hda_intel 48171 10
snd_hda_codec 188738 3 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel
microcode 23576 0
snd_hwdep 13602 1 snd_hda_codec
snd_pcm 102033 3 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
radeon 1402995 3
edac_core 62342 0
edac_mce_amd 22617 0
snd_seq_midi 13324 0
psmouse 97655 0
fam15h_power 13119 0
snd_seq_midi_event 14899 1 snd_seq_midi
serio_raw 13413 0
k10temp 13126 0
sp5100_tco 13979 0
snd_page_alloc 18710 2 snd_pcm,snd_hda_intel
i2c_piix4 22106 0
snd_rawmidi 30095 1 snd_seq_midi
snd_seq 61560 2 snd_seq_midi_event,snd_seq_midi
ttm 84169 1 radeon
snd_seq_device 14497 3 snd_seq,snd_rawmidi,snd_seq_midi
snd_timer 29433 2 snd_pcm,snd_seq
drm_kms_helper 52710 1 radeon
drm 297056 5 ttm,drm_kms_helper,radeon
snd 69141 31 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_seq_device,snd_seq_midi
soundcore 12680 1 snd
i2c_algo_bit 13413 1 radeon
mac_hid 13205 0
wmi 19070 2 mxm_wmi,asus_wmi
lp 17759 0
parport 42299 3 lp,ppdev,parport_pc
hid_logitech_dj 18581 0
usbhid 53014 0
hid 105858 4 usbhid,hid_logitech_dj
ahci 25819 3
r8169 67581 0
libahci 31928 1 ahci
mii 13934 1 r8169
[/code]
[code]
>> iwconfig
wlan0 IEEE 802.11bgn ESSID:"SKY12795"
Mode:Managed Frequency:2.437 GHz Access Point: 7C:4C:A5:7E:F0:ED
Bit Rate=72.2 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr=2347 B Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=63/70 Signal level=-47 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:13 Missed beacon:0
>> ifconfig -a
eth0 Link encap:Ethernet HWaddr bc:ee:7b:5c:b8:11
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)
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:3428 errors:0 dropped:0 overruns:0 frame:0
TX packets:3428 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:308618 (308.6 KB) TX bytes:308618 (308.6 KB)
wlan0 Link encap:Ethernet HWaddr 10:fe:ed:17:55:9a
inet addr:192.168.0.11 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::12fe:edff:fe17:559a/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:405566 errors:0 dropped:0 overruns:0 frame:0
TX packets:239178 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:548420692 (548.4 MB) TX bytes:25583338 (25.5 MB)
>> sudo iwlist scan
wlan0 Scan completed :
Cell 01 - Address: 7C:4C:A5:7E:F0:ED
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=60/70 Signal level=-50 dBm
Encryption key:on
ESSID:"SKY12795"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000006169da3baa
Extra: Last beacon: 168ms ago
IE: Unknown: 0008534B593132373935
IE: Unknown: 010882848B962430486C
IE: Unknown: 030106
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 32040C121860
IE: Unknown: 2D1AEC181BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1606080400000000000000000000000000000000000000
IE: Unknown: DD800050F204104A0001101044000102103B00010310470010B4507EEEC180E6FEE48483EAC36299C31021000842726F6164636F6D1023000842726F6164636F6D1024000631323334353610420004313233341054000800060050F20400011011000A42726F6164636F6D415010080002200C103C0001011049000600372A000120
IE: Unknown: DD090010180206F02C0000
IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
Cell 02 - Address: 02:AC:54:EA:B0:92
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=70/70 Signal level=10 dBm
Encryption key:off
ESSID:"BTWiFi"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=0000009594434036
Extra: Last beacon: 1692ms ago
IE: Unknown: 0006425457694669
IE: Unknown: 010882848B960C121824
IE: Unknown: 030101
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: 2D1AAC011BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1601001100000000000000000000000000000000000000
IE: Unknown: 4A0E14000A002C01C800140005001900
IE: Unknown: 7F0101
IE: Unknown: DD180050F2020101890003A4000027A4000042435E0062322F00
IE: Unknown: DD0900037F01010000FF7F
Cell 03 - Address: 12:AC:54:EA:B0:92
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=63/70 Signal level=-47 dBm
Encryption key:off
ESSID:"BTWiFi-with-FON"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=000000959442c180
Extra: Last beacon: 1724ms ago
IE: Unknown: 000F4254576946692D776974682D464F4E
IE: Unknown: 010882848B960C121824
IE: Unknown: 030101
IE: Unknown: 050401030000
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: 2D1AAC011BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1601001100000000000000000000000000000000000000
IE: Unknown: 4A0E14000A002C01C800140005001900
IE: Unknown: 7F0101
IE: Unknown: DD180050F2020101890003A4000027A4000042435E0062322F00
Cell 04 - Address: 00:AC:54:EA:B0:92
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=70/70 Signal level=10 dBm
Encryption key:on
ESSID:"BTHub3-H4C3"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=0000009594424f37
Extra: Last beacon: 1700ms ago
IE: Unknown: 000B4254487562332D48344333
IE: Unknown: 010882848B960C121824
IE: Unknown: 030101
IE: Unknown: 2A0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: 32043048606C
IE: Unknown: 2D1AAC011BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1601001100000000000000000000000000000000000000
IE: Unknown: 4A0E14000A002C01C800140005001900
IE: Unknown: 7F0101
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101890003A4000027A4000042435E0062322F00
IE: Unknown: DD0900037F01010000FF7F
IE: Unknown: DDA70050F204104A000110104400010210570001001041000100103B00010310470010565AA94967C14C0EAA8FF349E6F5931110210002425410230017486F6D652048756220332E30204D756C7469204D6F646510240010425420486F6D652048756220332E3041104200122B3035383732302B313231393031333633311054000800060050F204000110110010425420486F6D652048756220332E3041100800020084103C000101
Cell 05 - Address: 7C:4C:A5:2F:E0:11
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=60/70 Signal level=-50 dBm
Encryption key:on
ESSID:"SKY37AC9"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=00000005228d7ac7
Extra: Last beacon: 76ms ago
IE: Unknown: 0008534B593337414339
IE: Unknown: 010882848B962430486C
IE: Unknown: 030106
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 32040C121860
IE: Unknown: 2D1AEC181BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1606080000000000000000000000000000000000000000
IE: Unknown: DD800050F204104A0001101044000102103B000103104700105798F8620325A8E730D0D990FC0834191021000842726F6164636F6D1023000842726F6164636F6D1024000631323334353610420004313233341054000800060050F20400011011000A42726F6164636F6D415010080002200C103C0001011049000600372A000120
IE: Unknown: DD090010180200F02C0000
IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
Cell 06 - Address: 7C:03:4C:A7:D8:A8
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=60/70 Signal level=-50 dBm
Encryption key:on
ESSID:"SKY7D8A7"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=000000576e3dae0d
Extra: Last beacon: 72ms ago
IE: Unknown: 0008534B593744384137
IE: Unknown: 010882848B962430486C
IE: Unknown: 030106
IE: Unknown: 2A0104
IE: Unknown: 2F0104
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: 32040C121860
IE: Unknown: 2D1AFC181BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1606001500000000000000000000000000000000000000
IE: Unknown: DD760050F204104A0001101044000102103B00010310470010EA05F98F66DAAA215D3A6F92626310B81021000842726F6164636F6D1023000842726F6164636F6D1024000631323334353610420004313233341054000800060050F20400011011000A42726F6164636F6D4150100800020084103C000101
IE: Unknown: DD090010180204F02C0000
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
Cell 07 - Address: 30:46:9A:7C:1E:14
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=70/70 Signal level=10 dBm
Encryption key:on
ESSID:"virginmedia8250852"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=000000933dba269e
Extra: Last beacon: 28ms ago
>> uname -r -m
3.11.0-15-generic x86_64
>> cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
>> nm-tool
NetworkManager Tool
State: connected (global)
- Device: wlan0 [SKY12795] ----------------------------------------------------
Type: 802.11 WiFi
Driver: rtl8192cu
State: connected
Default: yes
HW Address: 10:FE:ED:17:55:9A
Capabilities:
Speed: 72 Mb/s
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points (* = current AP)
SKY37AC9: Infra, 7C:4C:A5:2F:E0:11, Freq 2437 MHz, Rate 54 Mb/s, Strength 94 WPA2
BTWiFi: Infra, 02:AC:54:EA:B0:92, Freq 2412 MHz, Rate 54 Mb/s, Strength 10
BTWiFi-with-FON: Infra, 12:AC:54:EA:B0:92, Freq 2412 MHz, Rate 54 Mb/s, Strength 10
virginmedia8250852: Infra, 30:46:9A:7C:1E:14, Freq 2462 MHz, Rate 54 Mb/s, Strength 10 WPA WPA2
TALKTALK-6A9669: Infra, 00:26:B6:6A:96:69, Freq 2412 MHz, Rate 54 Mb/s, Strength 60 WPA WPA2
BTBusinessHub-170_EXT: Infra, 9C:D3:6D:A7:71:9E, Freq 2412 MHz, Rate 54 Mb/s, Strength 60 WPA WPA2
SKY7D8A7: Infra, 7C:03:4C:A7:D8:A8, Freq 2437 MHz, Rate 54 Mb/s, Strength 82 WPA WPA2
TALKTALK-C2F5B0: Infra, 90:94:E4:C2:F5:B0, Freq 2452 MHz, Rate 54 Mb/s, Strength 10 WPA WPA2
Fowza-at-home-Wireless: Infra, 00:26:F2:50:FC:18, Freq 2437 MHz, Rate 54 Mb/s, Strength 62 WPA WPA2
*SKY12795: Infra, 7C:4C:A5:7E:F0:ED, Freq 2437 MHz, Rate 54 Mb/s, Strength 72 WPA2
IPv4 Settings:
Address: 192.168.0.11
Prefix: 24 (255.255.255.0)
Gateway: 192.168.0.1
DNS: 192.168.0.1
- Device: eth0 -----------------------------------------------------------------
Type: Wired
Driver: r8169
State: unavailable
Default: no
HW Address: BC:EE:7B:5C:B8:11
Capabilities:
Carrier Detect: yes
Wired Properties
Carrier: off
>> sudo rfkill list
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
答案1
我也遇到过同样的问题。RTL 驱动程序不太好，幸运的是，一些非常聪明的人找到了一个很好的解决方案；我刚刚安装了它，连接稳定，没有丢失或中断。点击这些链接，仔细阅读并应用：“先了解一下。”（- Suzanne Brown）。微笑在等着你。
https://github.com/pvaret/rtl8192cu-fixes/blob/master/README.md （最容易遵循，但阅读其他内容可以帮助您了解自己正在做什么。）
答案2
这不是一个答案，但会帮助排除重要信息故障，并且消息太长，无法放在评论中。对此深表歉意。
自动版本：（使用脚本）
为了帮助解决无线连接问题，您可以通过运行一个简单的脚本添加一些重要信息。
- 下载：wifi检查工具
- 将文件放在你的 HOME 文件夹中（
~/或/home/username） - 打开终端（CTRL-ALT-T）
运行脚本（问题是法语，但回答‘y’表示是）：
sudo bash wificheck.sh && sudo chmod 777 wificheck.log打开新创建的文件wificheck.log并将内容发布在 Askubuntu.com 或 Ubuntuforums.org 上
它包含有关您的硬件/软件 wifi 的所有信息。
手册版本：（使用命令行、复制粘贴和文本编辑器）
现在，这将执行与脚本相同的操作（= 提供有助于解决无线连接问题的信息），但没有脚本。您将使用命令行手动完成所有操作。将每个命令的返回粘贴到文本文件或您打开的线程中。
cat /etc/lsb-release
lsusb
lspci -k -nn | grep -A 3 -i net
sudo lshw -C network
lsmod
iwconfig
ifconfig -a
sudo iwlist scan
uname -r -m
cat /etc/network/interfaces
nm-tool
sudo rfkill list