双启动的 Mac Mini 和 ubuntu，osx 的速度超过 200Mbps，speedtest.net 报告称。当 ubuntu 端的测试没有超时时，我得到的速度不到 5Mbps。
有时我甚至无法与盒子建立 SSH 连接。
有趣的是，它也看不到我的任何 5Ghz 网络。
FutureHax 是我尝试连接的网络。
########## wireless info START ##########
Report from: 15 Feb 2016 00:52 EST -0500
Booted last: 15 Feb 2016 00:44 EST -0500
Script from: 27 Sep 2015 00:34 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 14.04.3 LTS
Release: 14.04
Codename: trusty
##### kernel ############################
Linux 3.19.0-49-generic #55~14.04.1-Ubuntu SMP Fri Jan 22 11:24:31 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
\boot\vmlinuz-3.19.0-49-generic.efi.signed, ro, quiet, splash, vt.handoff=7, initrd=boot\initrd.img-3.19.0-49-generic
##### desktop ###########################
sed: can't read /home/futurehax/.dmrc: No such file or directory
Could not be determined.
##### lspci #############################
02:00.0 Ethernet controller [0200]: Broadcom Corporation NetXtreme BCM57765 Gigabit Ethernet PCIe [14e4:16b4] (rev 10)
Subsystem: Broadcom Corporation NetXtreme BCM57765 Gigabit Ethernet PCIe [14e4:16b4]
Kernel driver in use: tg3
03:00.0 Network controller [0280]: Broadcom Corporation BCM4331 802.11a/b/g/n [14e4:4331] (rev 02)
Subsystem: Apple Inc. AirPort Extreme [106b:00e4]
Kernel driver in use: bcma-pci-bridge
##### lsusb #############################
Bus 002 Device 005: ID 046d:c534 Logitech, Inc.
Bus 002 Device 004: ID 0bc2:331a Seagate RSS LLC
Bus 002 Device 003: ID 05ac:8242 Apple, Inc. Built-in IR Receiver
Bus 002 Device 002: ID 0424:2513 Standard Microsystems Corp. 2.0 Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 004: ID 04e8:61c3 Samsung Electronics Co., Ltd
Bus 001 Device 007: ID 05ac:8281 Apple, Inc.
Bus 001 Device 003: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub (part of BCM2046 Bluetooth)
Bus 001 Device 002: ID 0424:2513 Standard Microsystems Corp. 2.0 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
##### PCMCIA card info ##################
##### rfkill ############################
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
##### lsmod #############################
b43 421888 0
mac80211 712704 1 b43
cfg80211 524288 2 b43,mac80211
ssb 65536 1 b43
bcma 53248 1 b43
##### interfaces ########################
auto lo
iface lo inet loopback
##### ifconfig ##########################
docker0 Link encap:Ethernet HWaddr <MAC 'docker0' [IF]>
inet addr:172.17.0.1 Bcast:0.0.0.0 Mask:255.255.0.0
inet6 addr: fe80::<IP6 'docker0' [IF]>/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:92092 errors:0 dropped:0 overruns:0 frame:0
TX packets:146569 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:5240274 (5.2 MB) TX bytes:219047603 (219.0 MB)
eth0 Link encap:Ethernet HWaddr <MAC 'eth0' [IF]>
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)
Interrupt:16
veth256bd9a Link encap:Ethernet HWaddr <MAC 'veth256bd9a' [IF]>
inet6 addr: fe80::<IP6 'veth256bd9a' [IF]>/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:78 errors:0 dropped:0 overruns:0 frame:0
TX packets:156 errors:0 dropped:1 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:6396 (6.3 KB) TX bytes:20237 (20.2 KB)
veth6dd5713 Link encap:Ethernet HWaddr <MAC 'veth6dd5713' [IF]>
inet6 addr: fe80::<IP6 'veth6dd5713' [IF]>/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2110 errors:0 dropped:0 overruns:0 frame:0
TX packets:2603 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:154972 (154.9 KB) TX bytes:2673980 (2.6 MB)
veth8c6aa4b Link encap:Ethernet HWaddr <MAC 'veth8c6aa4b' [IF]>
inet6 addr: fe80::<IP6 'veth8c6aa4b' [IF]>/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:8 errors:0 dropped:0 overruns:0 frame:0
TX packets:192 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:648 (648.0 B) TX bytes:20935 (20.9 KB)
veth90b9f85 Link encap:Ethernet HWaddr <MAC 'veth90b9f85' [IF]>
inet6 addr: fe80::<IP6 'veth90b9f85' [IF]>/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:8 errors:0 dropped:0 overruns:0 frame:0
TX packets:172 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:648 (648.0 B) TX bytes:18783 (18.7 KB)
vetha5d3954 Link encap:Ethernet HWaddr <MAC 'vetha5d3954' [IF]>
inet6 addr: fe80::<IP6 'vetha5d3954' [IF]>/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:8 errors:0 dropped:0 overruns:0 frame:0
TX packets:190 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:648 (648.0 B) TX bytes:20755 (20.7 KB)
vethe4d6415 Link encap:Ethernet HWaddr <MAC 'vethe4d6415' [IF]>
inet6 addr: fe80::<IP6 'vethe4d6415' [IF]>/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:89880 errors:0 dropped:0 overruns:0 frame:0
TX packets:144290 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:6366250 (6.3 MB) TX bytes:216406793 (216.4 MB)
wlan0 Link encap:Ethernet HWaddr <MAC 'wlan0' [IF]>
inet addr:192.168.1.134 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::<IP6 'wlan0' [IF]>/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:163609 errors:0 dropped:0 overruns:0 frame:0
TX packets:104454 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:235577751 (235.5 MB) TX bytes:10873553 (10.8 MB)
##### iwconfig ##########################
vetha5d3954 no wireless extensions.
eth0 no wireless extensions.
vethe4d6415 no wireless extensions.
docker0 no wireless extensions.
veth256bd9a no wireless extensions.
veth6dd5713 no wireless extensions.
lo no wireless extensions.
veth90b9f85 no wireless extensions.
veth8c6aa4b no wireless extensions.
wlan0 IEEE 802.11bg ESSID:"FutureHax"
Mode:Managed Frequency:2.462 GHz Access Point: <MAC 'FutureHax' [AC5]>
Bit Rate=11 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=56/70 Signal level=-54 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:519 Invalid misc:444 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
172.17.0.0 0.0.0.0 255.255.0.0 U 0 0 0 docker0
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 cfl.rr.com
##### network managers ##################
Installed:
NetworkManager
Running:
root 1148 1 0 00:44 ? 00:00:01 NetworkManager
##### NetworkManager info ###############
NetworkManager Tool
State: connected (global)
- Device: wlan0 [FutureHax] ---------------------------------------------------
Type: 802.11 WiFi
Driver: b43
State: connected
Default: yes
HW Address: <MAC 'wlan0' [IF]>
Capabilities:
Speed: 11 Mb/s
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points (* = current AP)
PS4-A9DC9142ED84:Infra, <MAC 'PS4-A9DC9142ED84' [AC2]>, Freq 2437 MHz, Rate 54 Mb/s, Strength 62 WPA2
ATT64NqD3u: Infra, <MAC 'ATT64NqD3u' [AC1]>, Freq 2412 MHz, Rate 54 Mb/s, Strength 49 WPA2
You're Too Slow: Infra, <MAC 'You're Too Slow' [AC7]>, Freq 2437 MHz, Rate 54 Mb/s, Strength 25 WPA2
ATT72493RG: Infra, <MAC 'ATT72493RG' [AC6]>, Freq 2462 MHz, Rate 54 Mb/s, Strength 57 WPA2
*FutureHax: Infra, <MAC 'FutureHax' [AC5]>, Freq 2462 MHz, Rate 11 Mb/s, Strength 66 WPA2
IPv4 Settings:
Address: 192.168.1.134
Prefix: 24 (255.255.255.0)
Gateway: 192.168.1.1
DNS: 192.168.1.1
- Device: eth0 -----------------------------------------------------------------
Type: Wired
Driver: tg3
State: unavailable
Default: no
HW Address: <MAC 'eth0' [IF]>
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
[ifupdown]
managed=false
##### NetworkManager profiles ###########
[[/etc/NetworkManager/system-connections/FutureHax_5Ghz]] (600 root)
[connection] id=FutureHax_5Ghz | type=802-11-wireless
[802-11-wireless] ssid=FutureHax_5Ghz | mac-address=<MAC 'wlan0' [IF]>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/FutureHax]] (600 root)
[connection] id=FutureHax | type=802-11-wireless
[802-11-wireless] ssid=FutureHax | mac-address=<MAC 'wlan0' [IF]>
[ipv4] method=auto
[ipv6] method=auto
##### iw reg get ########################
Region: America/New_York (based on set time zone)
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
##### iwlist channels ###################
vetha5d3954 no frequency information.
eth0 no frequency information.
vethe4d6415 no frequency information.
docker0 no frequency information.
veth256bd9a no frequency information.
veth6dd5713 no frequency information.
lo no frequency information.
veth90b9f85 no frequency information.
veth8c6aa4b no frequency information.
wlan0 14 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
Channel 14 : 2.484 GHz
Current Frequency:2.462 GHz (Channel 11)
##### iwlist scan #######################
vetha5d3954 Interface doesn't support scanning.
eth0 Interface doesn't support scanning.
vethe4d6415 Interface doesn't support scanning.
docker0 Interface doesn't support scanning.
veth256bd9a Interface doesn't support scanning.
veth6dd5713 Interface doesn't support scanning.
lo Interface doesn't support scanning.
veth90b9f85 Interface doesn't support scanning.
veth8c6aa4b Interface doesn't support scanning.
Channel occupancy:
1 APs on Frequency:2.412 GHz (Channel 1)
2 APs on Frequency:2.437 GHz (Channel 6)
4 APs on Frequency:2.462 GHz (Channel 11)
wlan0 Scan completed :
Cell 01 - Address: <MAC 'ATT64NqD3u' [AC1]>
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=38/70 Signal level=-72 dBm
Encryption key:on
ESSID:"ATT64NqD3u"
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=000000036f1b228e
Extra: Last beacon: 4988ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Cell 02 - Address: <MAC 'PS4-A9DC9142ED84' [AC2]>
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=44/70 Signal level=-66 dBm
Encryption key:on
ESSID:"PS4-A9DC9142ED84"
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=00000010836c376b
Extra: Last beacon: 2988ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Cell 03 - Address: <MAC '' [AC3]>
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=49/70 Signal level=-61 dBm
Encryption key:off
ESSID:""
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=000000f61d26c205
Extra: Last beacon: 128ms ago
Cell 04 - Address: <MAC '' [AC4]>
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=51/70 Signal level=-59 dBm
Encryption key:off
ESSID:""
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=000000f61d26c97a
Extra: Last beacon: 60ms ago
Cell 05 - Address: <MAC 'FutureHax' [AC5]>
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=60/70 Signal level=-50 dBm
Encryption key:on
ESSID:"FutureHax"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
Mode:Master
Extra:tsf=000000f61d12f1d0
Extra: Last beacon: 84ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Cell 06 - Address: <MAC 'ATT72493RG' [AC6]>
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=42/70 Signal level=-68 dBm
Encryption key:on
ESSID:"ATT72493RG"
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=00000002208570b4
Extra: Last beacon: 296ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Cell 07 - Address: <MAC 'You're Too Slow' [AC7]>
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=27/70 Signal level=-83 dBm
Encryption key:on
ESSID:"You're Too Slow"
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=0000027d8e1c813b
Extra: Last beacon: 3408ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
##### module infos ######################
[b43]
filename: /lib/modules/3.19.0-49-generic/kernel/drivers/net/wireless/b43/b43.ko
firmware: b43/ucode9.fw
firmware: b43/ucode5.fw
firmware: b43/ucode16_mimo.fw
firmware: b43/ucode15.fw
firmware: b43/ucode14.fw
firmware: b43/ucode13.fw
firmware: b43/ucode11.fw
license: GPL
author: Rafał Miłecki
author: Gábor Stefanik
author: Michael Buesch
author: Stefano Brivio
author: Martin Langer
description: Broadcom B43 wireless driver
srcversion: 11BDA0A580599B083FE4F2B
depends: bcma,ssb,mac80211,cfg80211
intree: Y
vermagic: 3.19.0-49-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: A9:32:DC:23:78:95:A4:4D:39:59:BF:91:A3:56:6A:20:EE:21:1F:37
sig_hashalgo: sha512
parm: bad_frames_preempt:enable(1) / disable(0) Bad Frames Preemption (int)
parm: fwpostfix:Postfix for the .fw files to load. (string)
parm: hwpctl:Enable hardware-side power control (default off) (int)
parm: nohwcrypt:Disable hardware encryption. (int)
parm: hwtkip:Enable hardware tkip. (int)
parm: qos:Enable QOS support (default on) (int)
parm: btcoex:Enable Bluetooth coexistence (default on) (int)
parm: verbose:Log message verbosity: 0=error, 1=warn, 2=info(default), 3=debug (int)
parm: pio:Use PIO accesses by default: 0=DMA, 1=PIO (int)
parm: allhwsupport:Enable support for all hardware (even it if overlaps with the brcmsmac driver) (int)
[mac80211]
filename: /lib/modules/3.19.0-49-generic/kernel/net/mac80211/mac80211.ko
license: GPL
description: IEEE 802.11 subsystem
srcversion: 1261743510839D352D1D895
depends: cfg80211
intree: Y
vermagic: 3.19.0-49-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: A9:32:DC:23:78:95:A4:4D:39:59:BF:91:A3:56:6A:20:EE:21:1F:37
sig_hashalgo: sha512
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/3.19.0-49-generic/kernel/net/wireless/cfg80211.ko
description: wireless configuration support
license: GPL
author: Johannes Berg
srcversion: EF182B558008C23DD85EF03
depends:
intree: Y
vermagic: 3.19.0-49-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: A9:32:DC:23:78:95:A4:4D:39:59:BF:91:A3:56:6A:20:EE:21:1F:37
sig_hashalgo: sha512
parm: ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
parm: cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)
[ssb]
filename: /lib/modules/3.19.0-49-generic/kernel/drivers/ssb/ssb.ko
license: GPL
description: Sonics Silicon Backplane driver
srcversion: 551AE4C23939F7FBED9DA61
depends:
intree: Y
vermagic: 3.19.0-49-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: A9:32:DC:23:78:95:A4:4D:39:59:BF:91:A3:56:6A:20:EE:21:1F:37
sig_hashalgo: sha512
[bcma]
filename: /lib/modules/3.19.0-49-generic/kernel/drivers/bcma/bcma.ko
license: GPL
description: Broadcom's specific AMBA driver
srcversion: F17244FFF75F9BDF92327ED
depends:
intree: Y
vermagic: 3.19.0-49-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: A9:32:DC:23:78:95:A4:4D:39:59:BF:91:A3:56:6A:20:EE:21:1F:37
sig_hashalgo: sha512
##### module parameters #################
[b43]
allhwsupport: 0
bad_frames_preempt: 0
btcoex: 1
hwpctl: 0
hwtkip: 0
nohwcrypt: 0
pio: 0
qos: 1
verbose: 2
[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]
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00
##### /etc/modules ######################
lp
rtc
##### modprobe options ##################
[/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/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/iwlwifi.conf]
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211
[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en
##### rc.local ##########################
exit 0
##### pm-utils ##########################
[/etc/pm/config.d/default] (644 root)
SUSPEND_MODULES="b43 bcma"
##### udev rules ########################
[/etc/udev/rules.d/70-persistent-net.rules]
# PCI device 0x14e4:0x16b4 (tg3)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'eth0' [IF]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x14e4:0x4331 (b43)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'wlan0' [IF]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"
########## wireless info END ############
答案1
事实上它最终与我的电脑无关。
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s提示我。我的网络应该支持超过 200 Mbps。我记得我必须将 2.4Ghz 频段设置为“B”，仅用于我的其他设备，这导致网速降低。我仍然只能获得 55Mbps 左右的速度，但据我所知，我认为这是使用 BCM4331 驱动程序所能获得的最佳速度。
答案2
我发现 Broadcom 专有驱动程序的后续版本支持该芯片，并且经过测试可以正常工作。
在终端中运行
sudo apt-get install bcmwl-kernel-source
然后重新启动。