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Ubuntu 19.10：重新安装 bcmwl-kernel-source 后重试密码

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Ubuntu 19.10：重新安装 bcmwl-kernel-source 后重试密码

有一个 Ubuntu 19.10，其中所有最新更新均已更新。

问题

Wifi 无法连接到安全点。密码正确，但弹出窗口会反复要求输入密码。

问题何时开始

wifi 确实运行正常。但随后尝试运行：（sudo apt-get install --reinstall bcmwl-kernel-source根据https://wiki.ubuntu.com/DiscoDingo/ReleaseNotes#Known_issues）。

之后 - 无法连接。

细节

由于某种原因，无线显示为Ethernet interface。

lshw -class network
[sudo] password for obiol: 
  *-network                 
       description: Ethernet interface
       product: Wireless 7265
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: wlp2s0
       version: 59
       serial: 7c:b0:c2:14:71:ac
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical
       configuration: broadcast=yes driver=iwlwifi driverversion=5.3.0-26-generic firmware=29.62a39462.0 latency=0 link=no multicast=yes
       resources: irq:140 memory:df300000-df301fff

错误：

an 17 16:49:12 n552vw wpa_supplicant[1164]: dbus: wpa_dbus_property_changed: no property SessionLength in object /fi/w1/wpa_supplicant1/Interfaces/0
Jan 17 16:49:28 n552vw wpa_supplicant[1164]: nl80211: kernel reports: NLA_F_NESTED is missing
Jan 17 16:49:28 n552vw wpa_supplicant[1164]: dbus: wpa_dbus_property_changed: no property SessionLength in object /fi/w1/wpa_supplicant1/Interfaces/0
Jan 17 16:49:37 n552vw wpa_supplicant[1164]: nl80211: kernel reports: NLA_F_NESTED is missing
Jan 17 16:49:37 n552vw wpa_supplicant[1164]: dbus: wpa_dbus_property_changed: no property SessionLength in object /fi/w1/wpa_supplicant1/Interfaces/0
Jan 17 16:49:52 n552vw wpa_supplicant[1164]: dbus: wpa_dbus_property_changed: no property SessionLength in object /fi/w1/wpa_supplicant1/Interfaces/0
Jan 17 16:53:58 n552vw wpa_supplicant[1164]: nl80211: kernel reports: NLA_F_NESTED is missing
Jan 17 16:53:58 n552vw wpa_supplicant[1164]: dbus: wpa_dbus_property_changed: no property SessionLength in object /fi/w1/wpa_supplicant1/Interfaces/0
Jan 17 16:58:51 n552vw wpa_supplicant[1164]: nl80211: kernel reports: NLA_F_NESTED is missing
Jan 17 16:58:51 n552vw wpa_supplicant[1164]: dbus: wpa_dbus_property_changed: no property SessionLength in object /fi/w1/wpa_supplicant1/Interfaces/0
Jan 17 16:58:55 n552vw wpa_supplicant[1164]: nl80211: kernel reports: NLA_F_NESTED is missing
Jan 17 16:58:55 n552vw wpa_supplicant[1164]: dbus: wpa_dbus_property_changed: no property SessionLength in object /fi/w1/wpa_supplicant1/Interfaces/0
Jan 17 16:59:00 n552vw wpa_supplicant[1164]: nl80211: kernel reports: NLA_F_NESTED is missing
Jan 17 16:59:00 n552vw wpa_supplicant[1164]: dbus: wpa_dbus_property_changed: no property SessionLength in object /fi/w1/wpa_supplicant1/Interfaces/0

有什么想法可以解决这个问题吗？

答案1

似乎存在与 Wifi 模块和最新内核相关的错误。以下是与之相关的线程之一：https://bugs.launchpad.net/ubuntu/+source/backport-iwlwifi-dkms/+bug/1849891。

解决方案

就我而言，只需删除 iwlwifi 反向端口，sudo apt-get remove backport-iwlwifi-dkms然后重新启动即可解决问题。能够再次连接到 Wifi。

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