![无线网卡一直连接然后断开](https://linux22.com/image/161788/%E6%97%A0%E7%BA%BF%E7%BD%91%E5%8D%A1%E4%B8%80%E7%9B%B4%E8%BF%9E%E6%8E%A5%E7%84%B6%E5%90%8E%E6%96%AD%E5%BC%80.png)
我有一个 Broadcom BCM43142 芯片,从 Debian 9 开始工作正常。但是升级到 Debian 10 后,它显示这种奇怪的行为:自动断开 WiFi,成功重新连接 3 秒,断开连接,循环不断。它导致网站加载速度非常慢或根本无法加载。这是一个片段sudo dmesg
:
[ 1073.310482] IPv6: ADDRCONF(NETDEV_CHANGE): wlp6s0: link becomes ready
[ 1107.065818] IPv6: ADDRCONF(NETDEV_UP): wlp6s0: link is not ready
[ 1107.065852] IPv6: ADDRCONF(NETDEV_CHANGE): wlp6s0: link becomes ready
[ 1145.315969] IPv6: ADDRCONF(NETDEV_UP): wlp6s0: link is not ready
[ 1145.316005] IPv6: ADDRCONF(NETDEV_CHANGE): wlp6s0: link becomes ready
这是我运行iwconfig
两次时发生的情况:
$ sudo iwconfig
enp7s0 no wireless extensions.
wlp6s0 IEEE 802.11 ESSID:"TP-LINK_754E"
Mode:Managed Frequency:2.457 GHz
Bit Rate=58.5 Mb/s Tx-Power=200 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=40/70 Signal level=-70 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
enp0s20u1 no wireless extensions.
lo no wireless extensions.
$ sudo iwconfig
enp7s0 no wireless extensions.
wlp6s0 IEEE 802.11 ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=200 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
enp0s20u1 no wireless extensions.
lo no wireless extensions.
可以看到wlp6s0连接到我的wifi然后突然掉线,没有明显的原因。
问题不是因为路由器或芯片,因为我使用 Windows 双启动并且工作正常。你们有什么建议吗?
编辑(输出lspci -knn |grep Net -A3
):
06:00.0 Network controller [0280]: Broadcom Limited BCM43142 802.11b/g/n [14e4:4365] (rev 01)
Subsystem: Dell Wireless 1704 802.11n + BT 4.0 [1028:0016]
Kernel driver in use: wl
Kernel modules: bcma, wl
答案1
解决了。我运行journalctl -xe
并注意到 hostapd 正在禁用 wlp6s0。清除 hostapdsudo apt autoremove --purge hostapd
解决了问题。