我在三星笔记本电脑上运行 ubuntu 12.04，但 wifi 连接每分钟都会断开。我还有另一台戴尔笔记本电脑，也运行着 ubuntu 12.04，但 wifi 运行正常。如果我在办公室使用三星笔记本电脑，我的办公室笔记本电脑 wifi 运行正常。所以，我不明白问题出在哪里。我在谷歌上搜索了一下，找到了解决方案，比如设置忽略 IPv6 设置，但这仍然没有任何区别。
所以我不知道问题出在哪里，是我的网络提供商还是我的笔记本电脑。我不能责怪我的网络提供商，因为 wifi 在我的其他设备上工作正常，包括 Ipad、手机和戴尔笔记本电脑。我甚至不能清楚地说这是我的笔记本电脑的问题，因为 wifi 在我的办公室里工作正常。
以前，我的三星笔记本电脑上装有 ubuntu 13.04，并且遇到了同样的问题，因此我卸载了它并安装了 12.04，但问题仍然相同。
我运行了以下命令并输出
lsmod | grep rtl
沒有顯示任何内容
iwconfig | grep Power
lo no wireless extensions.
eth0 no wireless extensions.
Power Management:off
cat /var/log/syslog | grep -e etwork -e wlan | tail -n20
Oct 29 21:49:05 hgill-RF511-RF411-RF711 NetworkManager[833]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) started...
Oct 29 21:49:05 hgill-RF511-RF411-RF711 NetworkManager[833]: <info> (eth0): device state change: config -> ip-config (reason 'none') [50 70 0]
Oct 29 21:49:05 hgill-RF511-RF411-RF711 NetworkManager[833]: <info> Activation (eth0) Beginning IP6 addrconf.
Oct 29 21:49:05 hgill-RF511-RF411-RF711 NetworkManager[833]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) complete.
Oct 29 21:49:25 hgill-RF511-RF411-RF711 NetworkManager[833]: <info> (eth0): IP6 addrconf timed out or failed.
Oct 29 21:49:25 hgill-RF511-RF411-RF711 NetworkManager[833]: <info> Activation (eth0) Stage 4 of 5 (IPv6 Configure Timeout) scheduled...
Oct 29 21:49:25 hgill-RF511-RF411-RF711 NetworkManager[833]: <info> Activation (eth0) Stage 4 of 5 (IPv6 Configure Timeout) started...
Oct 29 21:49:25 hgill-RF511-RF411-RF711 NetworkManager[833]: <info> (eth0): device state change: ip-config -> failed (reason 'ip-config-unavailable') [70 120 5]
Oct 29 21:49:25 hgill-RF511-RF411-RF711 NetworkManager[833]: <info> Marking connection 'Wired connection 1' invalid.
Oct 29 21:49:25 hgill-RF511-RF411-RF711 NetworkManager[833]: <warn> Activation (eth0) failed.
Oct 29 21:49:25 hgill-RF511-RF411-RF711 NetworkManager[833]: <info> Activation (eth0) Stage 4 of 5 (IPv6 Configure Timeout) complete.
Oct 29 21:49:25 hgill-RF511-RF411-RF711 NetworkManager[833]: <info> (eth0): device state change: failed -> disconnected (reason 'none') [120 30 0]
Oct 29 21:49:25 hgill-RF511-RF411-RF711 NetworkManager[833]: <info> (eth0): deactivating device (reason 'none') [0]
Oct 29 21:49:25 hgill-RF511-RF411-RF711 NetworkManager[833]: <info> Policy set 'VM733532-2G' (eth1) as default for IPv4 routing and DNS.
Oct 29 21:49:25 hgill-RF511-RF411-RF711 NetworkManager[833]: <info> Policy set 'VM733532-2G' (eth1) as default for IPv4 routing and DNS.
Oct 29 21:53:41 hgill-RF511-RF411-RF711 NetworkManager[833]: <info> (eth0): carrier now OFF (device state 30)
Oct 29 21:53:41 hgill-RF511-RF411-RF711 NetworkManager[833]: <info> (eth0): device state change: disconnected -> unavailable (reason 'carrier-changed') [30 20 40]
Oct 29 21:53:41 hgill-RF511-RF411-RF711 NetworkManager[833]: <info> (eth0): deactivating device (reason 'carrier-changed') [40]
Oct 29 21:53:41 hgill-RF511-RF411-RF711 NetworkManager[833]: <info> Policy set 'VM733532-2G' (eth1) as default for IPv4 routing and DNS.
Oct 29 21:53:41 hgill-RF511-RF411-RF711 NetworkManager[833]: <info> Policy set 'VM733532-2G' (eth1) as default for IPv4 routing and DNS.
我跑了
lsmod
Module Size Used by
usb_storage 39646 0
nls_utf8 12493 1
udf 84576 1
crc_itu_t 12627 1 udf
michael_mic 12540 8
arc4 12473 4
snd_hda_codec_hdmi 31775 1
snd_hda_codec_realtek 174313 1
parport_pc 32114 0
ppdev 12849 0
rfcomm 38139 12
bnep 17830 2
joydev 17393 0
snd_hda_intel 32719 5
snd_hda_codec 109562 3 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 13276 1 snd_hda_codec
snd_pcm 80916 4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_seq_midi 13132 0
snd_rawmidi 25424 1 snd_seq_midi
snd_seq_midi_event 14475 1 snd_seq_midi
snd_seq 51592 2 snd_seq_midi,snd_seq_midi_event
snd_timer 28931 2 snd_pcm,snd_seq
snd_seq_device 14172 3 snd_seq_midi,snd_rawmidi,snd_seq
snd 62218 19 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,sn d_rawmidi,snd_seq,snd_timer,snd_seq_device
lib80211_crypt_tkip 17275 0
uvcvideo 67203 0
btusb 17948 2
mac_hid 13077 0
bluetooth 158447 23 rfcomm,bnep,btusb
videodev 86588 1 uvcvideo
psmouse 86546 0
serio_raw 13027 0
wl 2906597 0
soundcore 14635 1 snd
i915 428127 4
snd_page_alloc 14108 2 snd_hda_intel,snd_pcm
drm_kms_helper 45466 1 i915
drm 197641 5 i915,drm_kms_helper
i2c_algo_bit 13199 1 i915
video 19115 1 i915
mei 36570 0
cfg80211 178877 1 wl
lib80211 14040 2 lib80211_crypt_tkip,wl
lp 17455 0
parport 40930 3 parport_pc,ppdev,lp
usbhid 41937 0
hid 77428 1 usbhid
r8169 56396 0
答案1
最后，我找到了解决方案，因为没人能帮忙。问题出在我的 Broadcom STA 无线驱动程序上。我停用它并重新启动机器，现在问题就解决了。现在很开心 :)