昨天我做了一些更新，将我的 linux 14.10 升级到了 linux 15.04.. 现在我无法连接到我的家庭 wifi，而其他的我得到了 dns_probe_finished_no_internet.. 在网络管理器中出现了一些非常弱的连接，但不是我的自己的连接，它在 1 米远的地方并且可以工作，因为我可以用我的智能手机连接它。
笔记本电脑是东芝 L650，无线驱动程序是博通公司的 BCM4313。
这可以修复吗？我尝试了谷歌上出现的一些方法，但似乎没有任何效果。
编辑：
03:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter [14e4:4727] (rev 01)
Subsystem: Askey Computer Corp. Device [144f:7175]
Kernel driver in use: bcma-pci-bridge
编辑2：uname -a
Linux ruben-toshiba 3.19.0-18-generic #18-Ubuntu SMP Tue May 19 18:31:35 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
sudo apt-get 安装 bcmwl-kernel-source
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
linux-image-generic thermald
Use 'apt-get autoremove' to remove them.
The following NEW packages will be installed:
bcmwl-kernel-source
0 upgraded, 1 newly installed, 0 to remove and 861 not upgraded.
Need to get 0 B/1509 kB of archives.
After this operation, 8038 kB of additional disk space will be used.
Selecting previously unselected package bcmwl-kernel-source.
(Reading database ... 297447 files and directories currently installed.)
Preparing to unpack .../bcmwl-kernel-source_6.30.223.248+bdcom-0ubuntu2_amd64.deb ...
Unpacking bcmwl-kernel-source (6.30.223.248+bdcom-0ubuntu2) ...
Setting up bcmwl-kernel-source (6.30.223.248+bdcom-0ubuntu2) ...
Loading new bcmwl-6.30.223.248+bdcom DKMS files...
First Installation: checking all kernels...
Building only for 3.19.0-18-generic
Building for architecture x86_64
Building initial module for 3.19.0-18-generic
Done.
wl:
Running module version sanity check.
- Original module
- No original module exists within this kernel
- Installation
- Installing to /lib/modules/3.19.0-18-generic/updates/dkms/
depmod.........
DKMS: install completed.
update-initramfs: deferring update (trigger activated)
Processing triggers for initramfs-tools (0.103ubuntu15) ...
update-initramfs: Generating /boot/initrd.img-3.19.0-18-generic
答案1
由于某种原因，我不得不将我的 Wi-Fi 安全性从 WPA 和 WPA2 更改为仅 WPA2...这样，我就可以毫无问题地找到我的家用 Wi-Fi。