我的 wifi 连接有问题。我在这里浏览了大约 2 天，没有找到解决方案。我的连接速度约为 300kb/s，使用 16k dsl 连接。
##### release #####
Distributor ID: Ubuntu
Description: Ubuntu 14.04.1 LTS
Release: 14.04
Codename: trusty
##### kernel #####
Linux 3.13.0-35-generic #62-Ubuntu SMP Fri Aug 15 01:58:01 UTC 2014 i686 i686 i686 GNU/Linux
Parameters: ro, quiet, splash, vt.handoff=7
##### desktop #####
Ubuntu
##### lspci #####
05:00.0 Network controller [0280]: Intel Corporation Centrino Wireless-N 1000 [Condor Peak] [8086:0084]
Subsystem: Intel Corporation Centrino Wireless-N 1000 BGN [8086:1315]
Kernel driver in use: iwlwifi
08:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 03)
Subsystem: Lenovo Device [17aa:2131]
Kernel driver in use: r8169
##### lsusb #####
Bus 002 Device 003: ID 17ef:481b Lenovo
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 008 Device 002: ID 0a5c:217f Broadcom Corp. BCM2045B (BDC-2.1)
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 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 001 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 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
##### PCMCIA card info #####
##### rfkill #####
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
2: tpacpi_bluetooth_sw: Bluetooth
Soft blocked: no
Hard blocked: no
##### lsmod #####
iwldvm 214950 0
mac80211 546051 1 iwldvm
iwlwifi 152049 1 iwldvm
cfg80211 409394 3 iwlwifi,mac80211,iwldvm
wmi 18673 0
##### interfaces #####
auto lo
iface lo inet loopback
##### ifconfig #####
eth0 Link encap:Ethernet HWaddr <MAC addr eth0>
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)
wlan0 Link encap:Ethernet HWaddr <MAC addr wlan0>
inet addr:192.168.1.19 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::226:c7ff:fe60:d0c0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:9023 errors:0 dropped:0 overruns:0 frame:0
TX packets:8442 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:6338153 (6.3 MB) TX bytes:1523047 (1.5 MB)
##### iwconfig #####
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11bg ESSID:"StuggiRK"
Mode:Managed Frequency:2.412 GHz Access Point: <MAC addr StuggiRK>
Bit Rate=1 Mb/s Tx-Power=14 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=55/70 Signal level=-55 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:130 Invalid misc:161 Missed beacon:0
##### route #####
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.1.1 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 localdomain
##### nm-tool #####
NetworkManager Tool
State: connected (global)
- Device: eth0 -----------------------------------------------------------------
Type: Wired
Driver: r8169
State: unavailable
Default: no
HW Address: <MAC addr eth0>
Capabilities:
Carrier Detect: yes
Wired Properties
Carrier: off
- Device: wlan0 [StuggiRK] ----------------------------------------------------
Type: 802.11 WiFi
Driver: iwlwifi
State: connected
Default: yes
HW Address: <MAC addr wlan0>
Capabilities:
Speed: 1 Mb/s
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points (* = current AP)
GloveC: Infra, <MAC addr GloveC>, Freq 2462 MHz, Rate 54 Mb/s, Strength 74 WPA WPA2
FRITZ!Box Fon WLAN 7270: Infra, <MAC addr FRITZ!Box Fon WLAN 7270>, Freq 2462 MHz, Rate 54 Mb/s, Strength 64 WPA WPA2
WLAN-E4BC55: Infra, <MAC addr WLAN-E4BC55>, Freq 2462 MHz, Rate 54 Mb/s, Strength 54 WPA2
WLAN-540612: Infra, <MAC addr WLAN-540612>, Freq 2462 MHz, Rate 54 Mb/s, Strength 40 WPA2
FRITZ!Box Fon WLAN 7320: Infra, <MAC addr FRITZ!Box Fon WLAN 7320>, Freq 2412 MHz, Rate 54 Mb/s, Strength 27 WPA WPA2
o2DSL: Infra, <MAC addr o2DSL>, Freq 2422 MHz, Rate 54 Mb/s, Strength 24 WPA WPA2
*StuggiRK: Infra, <MAC addr StuggiRK>, Freq 2412 MHz, Rate 54 Mb/s, Strength 65 WPA2
IPv4 Settings:
Address: 192.168.1.19
Prefix: 24 (255.255.255.0)
Gateway: 192.168.1.1
DNS: 192.168.1.1
DNS: 8.8.8.8
DNS: 8.8.4.4
##### NetworkManager.state #####
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
##### NetworkManager.conf #####
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=false
##### iw reg get #####
country DE:
(2400 - 2483 @ 40), (N/A, 20)
(5150 - 5250 @ 40), (N/A, 20), NO-OUTDOOR
(5250 - 5350 @ 40), (N/A, 20), NO-OUTDOOR, DFS
(5470 - 5725 @ 40), (N/A, 26), DFS
(57240 - 65880 @ 2160), (N/A, 40), NO-OUTDOOR
##### iwlist channels #####
lo no frequency information.
eth0 no frequency information.
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=2.412 GHz (Channel 1)
##### iwlist scan #####
Channel occupancy:
2 WLAPs on Frequency:2.412 GHz (Channel 1)
1 WLAPs on Frequency:2.422 GHz (Channel 3)
4 WLAPs on Frequency:2.462 GHz (Channel 11)
wlan0 Scan completed :
Cell 01 - Address: <MAC addr StuggiRK>
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=56/70 Signal level=-54 dBm
Encryption key:on
ESSID:"StuggiRK"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
18 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000002d9c3846cd
Extra: Last beacon: 1234604ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Preauthentication Supported
Cell 02 - Address: <MAC addr StuggiRK>
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=54/70 Signal level=-56 dBm
Encryption key:on
ESSID:""
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
18 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000002de5cc7159
Extra: Last beacon: 144ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Preauthentication Supported
Cell 03 - Address: <MAC addr o2DSL>
Channel:3
Frequency:2.422 GHz (Channel 3)
Quality=25/70 Signal level=-85 dBm
Encryption key:on
ESSID:"o2DSL"
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=0000004802c13ca2
Extra: Last beacon: 16ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
Cell 04 - Address: <MAC addr GloveC>
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=54/70 Signal level=-56 dBm
Encryption key:on
ESSID:"GloveC"
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=000000287bd32281
Extra: Last beacon: 16ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
Cell 05 - Address: <MAC addr FRITZ!Box Fon WLAN 7270>
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=46/70 Signal level=-64 dBm
Encryption key:on
ESSID:"FRITZ!Box Fon WLAN 7270"
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=000000287b60b897
Extra: Last beacon: 16ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
Cell 06 - Address: <MAC addr WLAN-E4BC55>
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=40/70 Signal level=-70 dBm
Encryption key:on
ESSID:"WLAN-E4BC55"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=000001fe8708ff07
Extra: Last beacon: 16ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Cell 07 - Address: <MAC addr WLAN-540612>
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=30/70 Signal level=-80 dBm
Encryption key:on
ESSID:"WLAN-540612"
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=0000003a6e946151
Extra: Last beacon: 16ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
eth0 Interface doesn't support scanning.
564756383533394A5710240008312E33322E3030301042000A4A3330313231353132321054000800060050F204000110110014576972656C65737320526F757465722857464129100800020084103C000103
##### module infos #####
[iwldvm]
filename: /lib/modules/3.13.0-35-generic/kernel/drivers/net/wireless/iwlwifi/dvm/iwldvm.ko
license: GPL
author: Copyright(c) 2003-2013 Intel Corporation <[email protected]>
version: in-tree:
description: Intel(R) Wireless WiFi Link AGN driver for Linux
srcversion: CC4D1BA11C1EF73A6ABDE53
depends: iwlwifi,mac80211,cfg80211
intree: Y
vermagic: 3.13.0-35-generic SMP mod_unload modversions 686
signer: Magrathea: Glacier signing key
sig_key: A2:8D:B5:FD:6E:29:9C:CE:49:47:DA:CA:A6:6F:45:9D:B4:AC:CE:24
sig_hashalgo: sha512
[iwlwifi]
filename: /lib/modules/3.13.0-35-generic/kernel/drivers/net/wireless/iwlwifi/iwlwifi.ko
license: GPL
author: Copyright(c) 2003-2013 Intel Corporation <[email protected]>
version: in-tree:
description: Intel(R) Wireless WiFi driver for Linux
firmware: iwlwifi-100-5.ucode
firmware: iwlwifi-1000-5.ucode
firmware: iwlwifi-135-6.ucode
firmware: iwlwifi-105-6.ucode
firmware: iwlwifi-2030-6.ucode
firmware: iwlwifi-2000-6.ucode
firmware: iwlwifi-5150-2.ucode
firmware: iwlwifi-5000-5.ucode
firmware: iwlwifi-6000g2b-6.ucode
firmware: iwlwifi-6000g2a-5.ucode
firmware: iwlwifi-6050-5.ucode
firmware: iwlwifi-6000-4.ucode
firmware: iwlwifi-7265-7.ucode
firmware: iwlwifi-3160-7.ucode
firmware: iwlwifi-7260-7.ucode
srcversion: C2D0F3DFCA289585C100E36
depends: cfg80211
intree: Y
vermagic: 3.13.0-35-generic SMP mod_unload modversions 686
signer: Magrathea: Glacier signing key
sig_key: A2:8D:B5:FD:6E:29:9C:CE:49:47:DA:CA:A6:6F:45:9D:B4:AC:CE:24
sig_hashalgo: sha512
parm: swcrypto:using crypto in software (default 0 [hardware]) (int)
parm: 11n_disable:disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX (uint)
parm: amsdu_size_8K:enable 8K amsdu size (default 0) (int)
parm: fw_restart:restart firmware in case of error (default true) (bool)
parm: antenna_coupling:specify antenna coupling in dB (defualt: 0 dB) (int)
parm: wd_disable:Disable stuck queue watchdog timer 0=system default, 1=disable, 2=enable (default: 0) (int)
parm: nvm_file:NVM file name (charp)
parm: bt_coex_active:enable wifi/bt co-exist (default: enable) (bool)
parm: led_mode:0=system default, 1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0) (int)
parm: power_save:enable WiFi power management (default: disable) (bool)
parm: power_level:default power save level (range from 1 - 5, default: 1) (int)
##### module parameters #####
[iwlwifi]
11n_disable: 1
amsdu_size_8K: 0
antenna_coupling: 0
bt_coex_active: Y
fw_restart: Y
led_mode: 0
nvm_file: (null)
power_level: 0
power_save: N
swcrypto: 1
wd_disable: 1
##### /etc/modules #####
lp
##### blacklists #####
[/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
##### rc.local #####
exit 0
##### udev rules #####
[/etc/udev/rules.d/70-persistent-net.rules]
# PCI device 0x10ec:0x8168 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC addr eth0>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x8086:0x0084 (iwlwifi)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC addr wlan0>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"
:15:98:08:00 SRC=192.168.1.1 DST=224.0.0.1 LEN=36 TOS=0x08 PREC=0x40 TTL=1 ID=30174 PROTO=2
########## wireless info END ############
答案1
您可以尝试从 backports3.16-1 安装最新的 iwlwifi。下载后，将其解压到文件夹中并输入：
$make defconf-iwlwifi
$sudo make
$sudo make install
$sudo reboot
如果不起作用，请尝试在终端中输入：
$echo "options iwlmvm power_scheme=1" | sudo tee /etc/modprobe.d/iwlmvm.conf
$echo "options iwlwifi bt_coex_active=Y swcrypto=1 11n_disable=1" | sudo tee /etc/modprobe.d/iwlwifi.conf
$sudo reboot