我是一个新手 Ubuntu 用户。自从我安装了 Ubuntu 后，我这台电脑的网络连接就变得太慢了。
有时互联网连接会断开或视频加载缓慢。
这是我的无线信息：
########## wireless info START ##########
##### release #####
Distributor ID: Ubuntu
Description: Ubuntu 14.04.1 LTS
Release: 14.04
Codename: trusty
##### kernel #####
Linux andres-HP-14-Notebook-PC 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
##### lspci #####
02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller [10ec:8136] (rev 07)
Subsystem: Hewlett-Packard Company Device [103c:218d]
Kernel driver in use: r8169
03:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8188EE Wireless Network Adapter [10ec:8179] (rev 01)
Subsystem: Hewlett-Packard Company Device [103c:197d]
Kernel driver in use: rtl8188ee
##### lsusb #####
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 04f2:b40d Chicony Electronics Co., Ltd
Bus 001 Device 003: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
Bus 001 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 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
##### lsmod #####
rtl8188ee 89677 0
rtl_pci 26690 1 rtl8188ee
rtlwifi 63475 2 rtl_pci,rtl8188ee
mac80211 630653 3 rtl_pci,rtlwifi,rtl8188ee
cfg80211 484040 2 mac80211,rtlwifi
##### iw reg get #####
country 00:
(2402 - 2472 @ 40), (3, 20)
(2457 - 2482 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
(2474 - 2494 @ 20), (3, 20), NO-OFDM, PASSIVE-SCAN, NO-IBSS
(5170 - 5250 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
(5735 - 5835 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
##### interfaces #####
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
##### iwconfig #####
wlan0 IEEE 802.11bgn ESSID:"JANET PC"
Mode:Managed Frequency:2.462 GHz Access Point: <MAC address removed>
Bit Rate=150 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr=2347 B Fragment thr:off
Power Management:off
Link Quality=70/70 Signal level=-14 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:5 Missed beacon:0
##### route #####
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.1.2 0.0.0.0 UG 0 0 0 wlan0
192.168.1.0 0.0.0.0 255.255.255.0 U 9 0 0 wlan0
##### resolv.conf #####
nameserver 127.0.1.1
search espol.edu.ec
##### nm-tool #####
NetworkManager Tool
State: connected (global)
- Device: wlan0 [JANET PC] ----------------------------------------------------
Type: 802.11 WiFi
Driver: rtl8188ee
State: connected
Default: yes
HW Address: <MAC address removed>
Capabilities:
Speed: 150 Mb/s
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points (* = current AP)
RIOFRIO: Infra, <MAC address removed>, Freq 2462 MHz, Rate 54 Mb/s, Strength 27 WPA WPA2
LORENCES CARDENAS: Infra, <MAC address removed>, Freq 2462 MHz, Rate 54 Mb/s, Strength 100 WPA WPA2
TVCABLE CARLOS: Infra, <MAC address removed>, Freq 2452 MHz, Rate 54 Mb/s, Strength 54 WPA WPA2
Familia Velasquez : Infra, <MAC address removed>, Freq 2437 MHz, Rate 48 Mb/s, Strength 60 WEP
ZyXEL: Infra, <MAC address removed>, Freq 2412 MHz, Rate 54 Mb/s, Strength 60
ZHIRZHAN AZANZA: Infra, <MAC address removed>, Freq 2412 MHz, Rate 54 Mb/s, Strength 27 WPA2
red Barrezueta: Infra, <MAC address removed>, Freq 2462 MHz, Rate 54 Mb/s, Strength 100 WPA
*JANET PC: Infra, <MAC address removed>, Freq 2462 MHz, Rate 54 Mb/s, Strength 74 WPA WPA2
IPv4 Settings:
Address: 192.168.1.104
Prefix: 24 (255.255.255.0)
Gateway: 192.168.1.2
DNS: 192.168.1.2
- Device: eth0 -----------------------------------------------------------------
Type: Wired
Driver: r8169
State: unavailable
Default: no
HW Address: <MAC address removed>
Capabilities:
Carrier Detect: yes
Wired Properties
Carrier: off
##### NetworkManager.state #####
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
##### NetworkManager.conf #####
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
no-auto-default=<MAC address removed>,
[ifupdown]
managed=false
##### iwlist #####
wlan0 Scan completed :
Cell 01 - Address: <MAC address removed>
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=64/70 Signal level=-46 dBm
Encryption key:on
ESSID:"JANET PC"
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=000000000f53f342
Extra: Last beacon: 4ms ago
IE: Unknown: 00084A414E4554205043
IE: Unknown: 010882848B960C121824
IE: Unknown: 03010B
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: WPA Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: DD180050F2020101850003A4000027A4000042435E0062322F00
IE: Unknown: DD1E00904C334E111BFF00000000000000000000000000000000000000000000
IE: Unknown: 2D1A4E111BFF00000000000000000000000000000000000000000000
IE: Unknown: DD1A00904C340B0F0800000000000000000000000000000000000000
IE: Unknown: 3D160B0F0800000000000000000000000000000000000000
IE: Unknown: DD0900037F01010000FF7F
IE: Unknown: DD0A00037F04010000004000
IE: Unknown: DD850050F204104A0001101044000102103B0001031047001000000000000010000000F8D1114C7EEC1021000754502D4C494E4B10230009544C2D57523734304E10240007312E302F322E3010420003312E301054000800060050F204000110110019576972656C65737320526F7574657220544C2D57523734304E100800020086103C000101
Cell 02 - Address: <MAC address removed>
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=48/70 Signal level=-62 dBm
Encryption key:on
ESSID:"LORENCES CARDENAS"
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=000000092627030f
Extra: Last beacon: 4ms ago
IE: Unknown: 00114C4F52454E4345532043415244454E4153
IE: Unknown: 010882848B960C121824
IE: Unknown: 03010B
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: DD180050F2020101850003A4000027A4000042435E0062322F00
IE: Unknown: DD1E00904C334E111BFF00000000000000000000000000000000000000000000
IE: Unknown: 2D1A4E111BFF00000000000000000000000000000000000000000000
IE: Unknown: DD1A00904C340B0F0A00000000000000000000000000000000000000
IE: Unknown: 3D160B0F0A00000000000000000000000000000000000000
IE: Unknown: DD0900037F01010000FF7F
IE: Unknown: DD0A00037F04010000004000
IE: Unknown: DD850050F204104A0001101044000102103B0001031047001000000000000010000000F8D1114C58D01021000754502D4C494E4B10230009544C2D57523734304E10240007312E302F322E3010420003312E301054000800060050F204000110110019576972656C65737320526F7574657220544C2D57523734304E100800020086103C000101
##### iwlist channel #####
wlan0 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
Current Frequency:2.462 GHz (Channel 11)
##### modinfo #####
filename: /lib/modules/3.13.0-32-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: FA356D8EFD887B567263405
alias: pci:v000010ECd00008179sv*sd*bc*sc*i*
depends: rtlwifi,rtl_pci,mac80211
intree: Y
vermagic: 3.13.0-32-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: <MAC address removed>:65:43:53:5F:A2:BB:5B:70:9E:84:F1:6D:A7:C7
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: msi:Set to 1 to use MSI interrupts mode (default 0)
(bool)
parm: debug:Set debug level (0-5) (default 0) (int)
filename: /lib/modules/3.13.0-32-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: D5E4890DC428FA5A1BF92DF
depends: mac80211,rtlwifi
intree: Y
vermagic: 3.13.0-32-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: <MAC address removed>:65:43:53:5F:A2:BB:5B:70:9E:84:F1:6D:A7:C7
sig_hashalgo: sha512
filename: /lib/modules/3.13.0-32-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: E1F4663325225EE8DBA54CA
depends: mac80211,cfg80211
intree: Y
vermagic: 3.13.0-32-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: <MAC address removed>:65:43:53:5F:A2:BB:5B:70:9E:84:F1:6D:A7:C7
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 0x10ec:0x8136 (r8169)
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 #####
[ 10.240208] rtl8188ee: Using firmware rtlwifi/rtl8188efw.bin
[ 10.479355] ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
[ 10.479708] rtlwifi: wireless switch is on
[ 18.747581] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 18.751540] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 20.957674] wlan0: authenticate with <MAC address removed>
[ 20.977605] wlan0: send auth to <MAC address removed> (try 1/3)
[ 20.980598] wlan0: authenticated
[ 20.981173] wlan0: associate with <MAC address removed> (try 1/3)
[ 20.984873] wlan0: RX AssocResp from <MAC address removed> (capab=0x431 status=0 aid=1)
[ 20.984992] wlan0: associated
[ 20.985028] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 21.034651] wlan0: deauthenticating from <MAC address removed> by local choice (reason=2)
[ 21.068107] wlan0: authenticate with <MAC address removed>
[ 21.461735] wlan0: send auth to <MAC address removed> (try 1/3)
[ 22.821096] wlan0: send auth to <MAC address removed> (try 2/3)
[ 22.826304] wlan0: authenticated
[ 22.829090] wlan0: associate with <MAC address removed> (try 1/3)
[ 22.833971] wlan0: RX AssocResp from <MAC address removed> (capab=0x431 status=0 aid=1)
[ 22.834098] wlan0: associated
[ 54.012122] wlan0: Connection to AP <MAC address removed> lost
[ 55.405663] wlan0: authenticate with <MAC address removed>
[ 55.425482] wlan0: send auth to <MAC address removed> (try 1/3)
[ 55.429380] wlan0: authenticated
[ 55.433055] wlan0: associate with <MAC address removed> (try 1/3)
[ 55.436758] wlan0: RX AssocResp from <MAC address removed> (capab=0x431 status=0 aid=1)
[ 55.436882] wlan0: associated
[ 583.627809] wlan0: Connection to AP <MAC address removed> lost
[ 585.033994] wlan0: authenticate with <MAC address removed>
[ 585.055689] wlan0: send auth to <MAC address removed> (try 1/3)
[ 585.156727] wlan0: send auth to <MAC address removed> (try 2/3)
[ 585.260717] wlan0: send auth to <MAC address removed> (try 3/3)
[ 585.364768] wlan0: authentication with <MAC address removed> timed out
[ 598.385936] wlan0: authenticate with <MAC address removed>
[ 598.405598] wlan0: send auth to <MAC address removed> (try 1/3)
[ 598.407041] wlan0: authenticated
[ 598.408993] wlan0: associate with <MAC address removed> (try 1/3)
[ 598.413122] wlan0: RX AssocResp from <MAC address removed> (capab=0x431 status=0 aid=1)
[ 598.413249] wlan0: associated
[ 616.462662] wlan0: deauthenticating from <MAC address removed> by local choice (reason=3)
[ 617.405492] wlan0: authenticate with <MAC address removed>
[ 617.425021] wlan0: send auth to <MAC address removed> (try 1/3)
[ 617.457648] wlan0: deauthenticating from <MAC address removed> by local choice (reason=3)
[ 618.310553] wlan0: authenticate with <MAC address removed>
[ 618.329456] wlan0: send auth to <MAC address removed> (try 1/3)
[ 618.332790] wlan0: authenticated
[ 618.336698] wlan0: associate with <MAC address removed> (try 1/3)
[ 618.337996] wlan0: deauthenticating from <MAC address removed> by local choice (reason=3)
[ 618.340764] wlan0: RX AssocResp from <MAC address removed> (capab=0x431 status=0 aid=1)
[ 618.340892] wlan0: associated
[ 618.341374] wlan0: deauthenticating from <MAC address removed> by local choice (reason=3)
[ 619.209225] wlan0: authenticate with <MAC address removed>
[ 619.229031] wlan0: send auth to <MAC address removed> (try 1/3)
[ 619.230520] wlan0: authenticated
[ 619.236696] wlan0: associate with <MAC address removed> (try 1/3)
[ 619.245231] wlan0: RX AssocResp from <MAC address removed> (capab=0x431 status=0 aid=1)
[ 619.245352] wlan0: associated
[ 619.257092] wlan0: deauthenticating from <MAC address removed> by local choice (reason=2)
[ 619.297362] wlan0: authenticate with <MAC address removed>
[ 619.307555] wlan0: send auth to <MAC address removed> (try 1/3)
[ 619.309417] wlan0: authenticated
[ 619.312712] wlan0: associate with <MAC address removed> (try 1/3)
[ 619.316434] wlan0: RX AssocResp from <MAC address removed> (capab=0x431 status=0 aid=1)
[ 619.316561] wlan0: associated
########## wireless info END ############
任何形式的帮助都将不胜感激。
答案1
我建议你不要使用那个频道 (2462)。你所在的地区大约有 4 个人使用该频道，你很可能正在遭受干扰问题。你使用的是频道 11 (2462)，频道 1 (2412) 看起来也相当拥挤，因此请选择频道 3、4、7、8 或 10。
通过无线路由器设置执行此操作。
答案2
尝试针对 DSLReports.com 运行测试，看看他们是否测量到连接问题，最好与网络上运行的另一台计算机进行比较。这将诊断特定计算机是否存在真正的问题。
完全有可能存在一些 Wifi 驱动程序问题。这些问题确实偶尔会发生。