在 Ubuntu 14.04上,无线网络无法工作 !

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ubuntu

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问题

它有时随机工作,然后睡眠模式后停止,不能恢复。我最后一次尝试是安装另一个固件


sudo apt-get install linux-firmware-nonfree


sudo apt-get purge bcmwl-kernel-source broadcom-sta-common broadcom-sta-source && sudo apt-get install b43-fwcutter firmware-b43-installer




mario@ThinkPadMG:~$ ifconfig


eth0 Link encap:Ethernet HWaddr 3c:97:0e:66:d5:a9 


 inet addr:192.168.1.26 Bcast:192.168.1.255 Mask:255.255.255.0


 inet6 addr: fe80::3e97:eff:fe66:d5a9/64 Scope:Link


 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1


 RX packets:2779028 errors:0 dropped:0 overruns:0 frame:0


 TX packets:1396404 errors:0 dropped:0 overruns:0 carrier:0


 collisions:0 txqueuelen:1000 


 RX bytes:4100463259 (4.1 GB) TX bytes:105833025 (105.8 MB)


 Interrupt:20 Memory:f3a00000-f3a20000 



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:7830 errors:0 dropped:0 overruns:0 frame:0


 TX packets:7830 errors:0 dropped:0 overruns:0 carrier:0


 collisions:0 txqueuelen:0 


 RX bytes:667794 (667.7 KB) TX bytes:667794 (667.7 KB)



wlan0 Link encap:Ethernet HWaddr 6c:88:14:f0:6a:28 


 inet6 addr: fe80::6e88:14ff:fef0:6a28/64 Scope:Link


 UP BROADCAST MULTICAST MTU:1500 Metric:1


 RX packets:50 errors:0 dropped:0 overruns:0 frame:0


 TX packets:50 errors:0 dropped:0 overruns:0 carrier:0


 collisions:0 txqueuelen:1000 


 RX bytes:6750 (6.7 KB) TX bytes:7750 (7.7 KB)



mario@ThinkPadMG:~$ iwconfig


wwan0 no wireless extensions.



eth0 no wireless extensions.



lo no wireless extensions.



wlan0 IEEE 802.11abgn ESSID:off/any 


 Mode:Managed Access Point: Not-Associated Tx-Power=15 dBm 


 Retry long limit:7 RTS thr:off Fragment thr:off


 Power Management:off



mario@ThinkPadMG:~$ route -n


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 eth0


192.168.1.0 0.0.0.0 255.255.255.0 U 1 0 0 eth0



mario@ThinkPadMG:~$ nmcli nm


RUNNING STATE WIFI-HARDWARE WIFI WWAN-HARDWARE WWAN 


running connected enabled enabled enabled enabled



mario@ThinkPadMG:~$ lspci -nn | grep 0280


03:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N 6205 [Taylor Peak] [8086:0085] (rev 34)



dmesg | grep iwl

echo"options iwlwifi bt_coex_active=N" | sudo tee -a /etc/modprobe.d/iwlwifi.conf

dmesg | grep -e iwl -e wlan0


答案1

echo"options iwlwifi 11n_disable=8" | sudo tee -a /etc/modprobe.d/iwlwifi.conf

在网络管理器中禁用IPv6,方法是选择忽略,并添加 dmesg | grep iwl 然后向模块添加另一个更改 echo"options iwlwifi bt_coex_active=N" | sudo tee -a /etc/modprobe.d/iwlwifi.conf

拔下以太网电缆后重新引导



Ubuntu  ANY  无线  WIF  WIFI