我升级到了 Ubuntu 16.10，但从那时起只有以太网可以工作，我无法连接到任何 WiFi 网络。
我该如何排除故障并解决这个问题？
来自我的笔记本电脑的一些信息：
me@my-LAP:~$ iwconfig
wlp3s0b1 IEEE 802.11 ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=19 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
eno1 no wireless extensions.
lo no wireless extensions.
me@my-LAP:~$ uname -a
Linux XLAP 4.8.0-32-generic #34-Ubuntu SMP Tue Dec 13 14:30:43 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
me@my-LAP:~$ lspci -nnk | grep -A3 BCM4313
03:00.0 Network controller [0280]: Broadcom Limited BCM4313 802.11bgn Wireless Network Adapter [14e4:4727] (rev 01)
Subsystem: Dell BCM4313 802.11bgn Wireless Network Adapter [1028:0015]
Kernel driver in use: bcma-pci-bridge
Kernel modules: bcma
0c:00.0 SD Host controller [0805]: O2 Micro, Inc. OZ600FJ0/OZ900FJ0/OZ600FJS SD/MMC Card Reader Controller [1217:8221] (rev 05)
me@my-LAP:~$ cat /var/log/syslog | grep etwork | tail -n20
Jan 4 08:34:41 XLAP NetworkManager[1037]: <info> [1483511681.1499] device (wlp3s0b1): Activation: (wifi) access point 'MIR-Link' has security, but secrets are required.
Jan 4 08:34:41 XLAP NetworkManager[1037]: <info> [1483511681.1499] device (wlp3s0b1): state change: config -> need-auth (reason 'none') [50 60 0]
Jan 4 08:34:41 XLAP NetworkManager[1037]: <info> [1483511681.1884] device (wlp3s0b1): state change: need-auth -> prepare (reason 'none') [60 40 0]
Jan 4 08:34:41 XLAP NetworkManager[1037]: <info> [1483511681.1890] device (wlp3s0b1): state change: prepare -> config (reason 'none') [40 50 0]
Jan 4 08:34:41 XLAP NetworkManager[1037]: <info> [1483511681.1896] device (wlp3s0b1): Activation: (wifi) connection 'MIR-Link' has security, and secrets exist. No new secrets needed.
Jan 4 08:34:41 XLAP NetworkManager[1037]: <info> [1483511681.1901] Config: added 'ssid' value 'MIR-Link'
Jan 4 08:34:41 XLAP NetworkManager[1037]: <info> [1483511681.1913] Config: added 'scan_ssid' value '1'
Jan 4 08:34:41 XLAP NetworkManager[1037]: <info> [1483511681.1918] Config: added 'key_mgmt' value 'WPA-PSK'
Jan 4 08:34:41 XLAP NetworkManager[1037]: <info> [1483511681.1923] Config: added 'psk' value '<omitted>'
Jan 4 08:34:41 XLAP NetworkManager[1037]: <info> [1483511681.1929] sup-iface[0x562cd69ef610,wlp3s0b1]: config: set interface ap_scan to 1
Jan 4 08:34:41 XLAP gvfsd-network[4909]: Couldn't create directory monitor on smb://x-gnome-default-workgroup/. Error: The specified location is not mounted
Jan 4 08:34:42 XLAP NetworkManager[1037]: <info> [1483511682.2093] device (wlp3s0b1): supplicant interface state: disconnected -> scanning
Jan 4 08:34:45 XLAP gvfsd-network[4867]: Couldn't create directory monitor on smb://x-gnome-default-workgroup/. Error: The specified location is not mounted
Jan 4 08:34:49 XLAP gvfsd-network[4919]: Couldn't create directory monitor on smb://x-gnome-default-workgroup/. Error: The specified location is not mounted
Jan 4 08:35:06 XLAP NetworkManager[1037]: <warn> [1483511706.1142] device (wlp3s0b1): Activation: (wifi) association took too long, failing activation
Jan 4 08:35:06 XLAP NetworkManager[1037]: <info> [1483511706.1142] device (wlp3s0b1): state change: config -> failed (reason 'ssid-not-found') [50 120 53]
Jan 4 08:35:06 XLAP NetworkManager[1037]: <info> [1483511706.1146] policy: disabling autoconnect for connection 'MIR-Link'.
Jan 4 08:35:06 XLAP NetworkManager[1037]: <warn> [1483511706.1152] device (wlp3s0b1): Activation: failed for connection 'MIR-Link'
Jan 4 08:35:06 XLAP NetworkManager[1037]: <info> [1483511706.1160] device (wlp3s0b1): state change: failed -> disconnected (reason 'none') [120 30 0]
Jan 4 08:35:06 XLAP NetworkManager[1037]: <info> [1483511706.1175] device (wlp3s0b1): supplicant interface state: scanning -> disconnected
更新：添加了解决我的问题的解决方案作为答案
答案1
这不是驱动程序问题，但该链接对于了解我是否使用了正确的驱动程序很有用安装 Broadcom 无线驱动程序
经过长时间的搜索，我发现旧版本中有人遇到类似问题，并说 GUI 是原因。因此，我安装了 XUbuntu 并发现它可以正常工作，之后我重新安装了 ubuntu-desktop，问题就解决了。