我有一台双启动的 Windows 10 和 Ubuntu 20.04 机器。我可以在 Windows 上正常连接 Wifi，但使用 Ubuntu 时，它会每隔 10-20 分钟左右断开连接。当这种情况发生时，我总是可以通过以下方法让它重新工作：
sudo rmmod wl
sudo modprobe wl
我尝试过类似帖子中的建议（例如，禁用 IPv6，设置REGDOMAIN=GB并/etc/default/crda安装linux-firmware），但到目前为止没有任何效果。如果有人能帮忙，我将不胜感激。
输出自lspci -nn -d 14e4:
21:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM4352 802.11ac Wireless Network Adapter [14e4:43b1] (rev 03)
journalctl"断开连接时的输出：
Oct 15 08:05:51 jack-MS-7C02 wpa_supplicant[981]: wlo1: Trying to associate with 18:e8:29:68:fb:e3 (SSID='Careline Wireless' freq=5240 MHz)
Oct 15 08:05:51 jack-MS-7C02 geoclue[1644]: Failed to query location: Error resolving “location.services.mozilla.com”: Temporary failure in name resolution
Oct 15 08:05:51 jack-MS-7C02 NetworkManager[952]: <info> [1602745551.4197] device (wlo1): supplicant interface state: scanning -> associating
Oct 15 08:05:51 jack-MS-7C02 wpa_supplicant[981]: wlo1: Associated with 18:e8:29:68:fb:e3
Oct 15 08:05:51 jack-MS-7C02 wpa_supplicant[981]: wlo1: CTRL-EVENT-SUBNET-STATUS-UPDATE status=0
Oct 15 08:05:51 jack-MS-7C02 wpa_supplicant[981]: wlo1: WPA: Key negotiation completed with 18:e8:29:68:fb:e3 [PTK=CCMP GTK=CCMP]
Oct 15 08:05:51 jack-MS-7C02 wpa_supplicant[981]: wlo1: CTRL-EVENT-CONNECTED - Connection to 18:e8:29:68:fb:e3 completed [id=0 id_str=]
Oct 15 08:05:51 jack-MS-7C02 wpa_supplicant[981]: bgscan simple: Failed to enable signal strength monitoring
Oct 15 08:05:51 jack-MS-7C02 NetworkManager[952]: <info> [1602745551.4878] device (wlo1): supplicant interface state: associating -> completed
Oct 15 08:05:52 jack-MS-7C02 code.desktop[4422]: [main 2020-10-15T07:05:52.330Z] update#setState idle
Oct 15 08:06:23 jack-MS-7C02 wpa_supplicant[981]: wlo1: Trying to associate with 18:e8:29:67:f8:9d (SSID='Careline Wireless' freq=2437 MHz)
Oct 15 08:06:23 jack-MS-7C02 NetworkManager[952]: <info> [1602745583.1708] device (wlo1): supplicant interface state: completed -> associating
Oct 15 08:06:23 jack-MS-7C02 kernel: ERROR @wl_cfg80211_get_station :
Oct 15 08:06:23 jack-MS-7C02 kernel: Wrong Mac address, mac = 18:e8:29:68:fb:e3 profile =18:e8:29:67:f8:9d
Oct 15 08:06:23 jack-MS-7C02 kernel: ERROR @wl_cfg80211_get_station :
Oct 15 08:06:23 jack-MS-7C02 kernel: Wrong Mac address, mac = 18:e8:29:68:fb:e3 profile =18:e8:29:67:f8:9d
Oct 15 08:06:27 jack-MS-7C02 kernel: ERROR @wl_cfg80211_get_station :
Oct 15 08:06:27 jack-MS-7C02 kernel: Wrong Mac address, mac = 18:e8:29:68:fb:e3 profile =18:e8:29:67:f8:9d
Oct 15 08:06:27 jack-MS-7C02 kernel: ERROR @wl_cfg80211_get_station :
Oct 15 08:06:27 jack-MS-7C02 kernel: Wrong Mac address, mac = 18:e8:29:68:fb:e3 profile =18:e8:29:67:f8:9d
Oct 15 08:06:33 jack-MS-7C02 wpa_supplicant[981]: wlo1: Authentication with 18:e8:29:67:f8:9d timed out.
Oct 15 08:06:33 jack-MS-7C02 wpa_supplicant[981]: wlo1: CTRL-EVENT-DISCONNECTED bssid=18:e8:29:67:f8:9d reason=3 locally_generated=1
Oct 15 08:06:33 jack-MS-7C02 wpa_supplicant[981]: nl80211: Was expecting local disconnect but got another disconnect event first
Oct 15 08:06:33 jack-MS-7C02 NetworkManager[952]: <warn> [1602745593.1701] sup-iface[0x55c1d41a8910,wlo1]: connection disconnected (reason -3)
Oct 15 08:06:33 jack-MS-7C02 NetworkManager[952]: <info> [1602745593.1709] device (wlo1): supplicant interface state: associating -> disconnected
Oct 15 08:06:33 jack-MS-7C02 wpa_supplicant[981]: wlo1: CTRL-EVENT-REGDOM-CHANGE init=CORE type=WORLD
Oct 15 08:06:33 jack-MS-7C02 wpa_supplicant[981]: wlo1: CTRL-EVENT-REGDOM-CHANGE init=USER type=COUNTRY alpha2=GB
Oct 15 08:06:33 jack-MS-7C02 wpa_supplicant[981]: wlo1: Reject scan trigger since one is already pending
Oct 15 08:06:33 jack-MS-7C02 wpa_supplicant[981]: wlo1: Failed to initiate AP scan
Oct 15 08:06:34 jack-MS-7C02 wpa_supplicant[981]: wlo1: Reject scan trigger since one is already pending
Oct 15 08:06:34 jack-MS-7C02 wpa_supplicant[981]: wlo1: Failed to initiate AP scan
Oct 15 08:06:34 jack-MS-7C02 wpa_supplicant[981]: wlo1: Trying to associate with 18:e8:29:67:fb:e3 (SSID='Careline Wireless' freq=2412 MHz)
Oct 15 08:06:34 jack-MS-7C02 geoclue[1644]: Failed to query location: Error resolving “location.services.mozilla.com”: Temporary failure in name resolution
Oct 15 08:06:34 jack-MS-7C02 NetworkManager[952]: <info> [1602745594.7696] device (wlo1): supplicant interface state: disconnected -> associating
Oct 15 08:06:44 jack-MS-7C02 wpa_supplicant[981]: wlo1: Authentication with 18:e8:29:67:fb:e3 timed out.
Oct 15 08:06:44 jack-MS-7C02 wpa_supplicant[981]: wlo1: CTRL-EVENT-DISCONNECTED bssid=18:e8:29:67:fb:e3 reason=3 locally_generated=1
Oct 15 08:06:44 jack-MS-7C02 NetworkManager[952]: <warn> [1602745604.7632] sup-iface[0x55c1d41a8910,wlo1]: connection disconnected (reason -3)
Oct 15 08:06:44 jack-MS-7C02 NetworkManager[952]: <info> [1602745604.7685] device (wlo1): supplicant interface state: associating -> disconnected
Oct 15 08:06:44 jack-MS-7C02 NetworkManager[952]: <info> [1602745604.8882] device (wlo1): supplicant interface state: disconnected -> scanning
Oct 15 08:06:46 jack-MS-7C02 wpa_supplicant[981]: wlo1: Trying to associate with 18:e8:29:68:fb:e3 (SSID='Careline Wireless' freq=5240 MHz)
Oct 15 08:06:46 jack-MS-7C02 geoclue[1644]: Failed to query location: Error resolving “location.services.mozilla.com”: Temporary failure in name resolution
Oct 15 08:06:46 jack-MS-7C02 NetworkManager[952]: <info> [1602745606.5059] device (wlo1): supplicant interface state: scanning -> associating
Oct 15 08:06:46 jack-MS-7C02 wpa_supplicant[981]: wlo1: CTRL-EVENT-ASSOC-REJECT bssid=18:e8:29:68:fb:e3 status_code=16
Oct 15 08:06:46 jack-MS-7C02 NetworkManager[952]: <info> [1602745606.5717] device (wlo1): supplicant interface state: associating -> disconnected
Oct 15 08:06:46 jack-MS-7C02 NetworkManager[952]: <info> [1602745606.6720] device (wlo1): supplicant interface state: disconnected -> scanning
Oct 15 08:06:48 jack-MS-7C02 wpa_supplicant[981]: wlo1: Trying to associate with 18:e8:29:67:f8:78 (SSID='Careline Wireless' freq=2412 MHz)
Oct 15 08:06:48 jack-MS-7C02 geoclue[1644]: Failed to query location: Error resolving “location.services.mozilla.com”: Temporary failure in name resolution
Oct 15 08:06:48 jack-MS-7C02 NetworkManager[952]: <info> [1602745608.3074] device (wlo1): supplicant interface state: scanning -> associating
Oct 15 08:06:48 jack-MS-7C02 wpa_supplicant[981]: wlo1: CTRL-EVENT-ASSOC-REJECT bssid=18:e8:29:68:fb:e3 status_code=16
Oct 15 08:06:48 jack-MS-7C02 NetworkManager[952]: <info> [1602745608.3555] device (wlo1): supplicant interface state: associating -> disconnected
Oct 15 08:06:49 jack-MS-7C02 NetworkManager[952]: <info> [1602745609.3571] device (wlo1): supplicant interface state: disconnected -> scanning
Oct 15 08:06:50 jack-MS-7C02 wpa_supplicant[981]: wlo1: Trying to associate with 18:e8:29:68:f8:9d (SSID='Careline Wireless' freq=5180 MHz)
Oct 15 08:06:50 jack-MS-7C02 NetworkManager[952]: <info> [1602745610.9553] device (wlo1): supplicant interface state: scanning -> associating
Oct 15 08:06:51 jack-MS-7C02 wpa_supplicant[981]: wlo1: CTRL-EVENT-ASSOC-REJECT bssid=18:e8:29:68:fb:e3 status_code=16
Oct 15 08:06:51 jack-MS-7C02 wpa_supplicant[981]: wlo1: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="Careline Wireless" auth_failures=1 duration=10 reason=CONN_FAILED
Oct 15 08:06:51 jack-MS-7C02 NetworkManager[952]: <info> [1602745611.0197] device (wlo1): supplicant interface state: associating -> disconnected
Oct 15 08:06:56 jack-MS-7C02 NetworkManager[952]: <info> [1602745616.0236] device (wlo1): supplicant interface state: disconnected -> scanning
Oct 15 08:06:57 jack-MS-7C02 geoclue[1644]: Failed to query location: Error resolving “location.services.mozilla.com”: Temporary failure in name resolution
Oct 15 08:06:59 jack-MS-7C02 systemd[1830]: Started Application launched by gnome-shell.
Oct 15 08:06:59 jack-MS-7C02 dbus-daemon[950]: [system] Activating via systemd: service name='org.bluez' unit='dbus-org.bluez.service' requested by ':1.123' (uid=1000 pid=5315 comm="/opt/google/chrome/chrome " label="unconfined")
Oct 15 08:06:59 jack-MS-7C02 systemd[1]: Condition check resulted in Bluetooth service being skipped.
Oct 15 08:06:59 jack-MS-7C02 gnome-keyring-daemon[1858]: asked to register item /org/freedesktop/secrets/collection/Default_5fkeyring/1, but it's already registered
Oct 15 08:06:59 jack-MS-7C02 gnome-keyring-daemon[1858]: asked to register item /org/freedesktop/secrets/collection/Default_5fkeyring/1, but it's already registered
Oct 15 08:07:00 jack-MS-7C02 gnome-shell[5323]: Fontconfig error: Cannot load default config file: No such file: (null)
Oct 15 08:07:00 jack-MS-7C02 gnome-shell[5323]: [5355:5355:1015/080700.530435:ERROR:shared_image_manager.cc(214)] SharedImageManager::ProduceSkia: Trying to Produce a Skia representation from a non-existent mailbox.
Oct 15 08:07:01 jack-MS-7C02 wpa_supplicant[981]: wlo1: CTRL-EVENT-SSID-REENABLED id=0 ssid="Careline Wireless"
Oct 15 08:07:01 jack-MS-7C02 wpa_supplicant[981]: wlo1: Trying to associate with 18:e8:29:67:f8:78 (SSID='Careline Wireless' freq=2412 MHz)
Oct 15 08:07:01 jack-MS-7C02 NetworkManager[952]: <info> [1602745621.6160] device (wlo1): supplicant interface state: scanning -> associating
Oct 15 08:07:01 jack-MS-7C02 wpa_supplicant[981]: wlo1: CTRL-EVENT-ASSOC-REJECT bssid=18:e8:29:68:fb:e3 status_code=16
Oct 15 08:07:01 jack-MS-7C02 wpa_supplicant[981]: wlo1: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="Careline Wireless" auth_failures=2 duration=20 reason=CONN_FAILED
Oct 15 08:07:01 jack-MS-7C02 NetworkManager[952]: <info> [1602745621.6758] device (wlo1): supplicant interface state: associating -> disconnected
Oct 15 08:07:03 jack-MS-7C02 NetworkManager[952]: <warn> [1602745623.8441] device (wlo1): link timed out.
Oct 15 08:07:03 jack-MS-7C02 NetworkManager[952]: <info> [1602745623.8443] device (wlo1): state change: activated -> failed (reason 'supplicant-timeout', sys-iface-state: 'managed')
Oct 15 08:07:03 jack-MS-7C02 gnome-shell[2059]: An active wireless connection, in infrastructure mode, involves no access point?
Oct 15 08:07:03 jack-MS-7C02 NetworkManager[952]: <warn> [1602745623.8468] device (wlo1): Activation: failed for connection 'Careline Wireless'
Oct 15 08:07:03 jack-MS-7C02 gnome-shell[1595]: An active wireless connection, in infrastructure mode, involves no access point?
答案1
我今天看到了以下帖子。您可以尝试将 SSID 名称全部改为小写，看看是否能解决问题吗？我不确定问题是什么，但可能值得一试。
答案2
就我而言，问题始于我在 Garuda Linux 上将 MAC 地址设置为随机后，这搞乱了 Garuda 和 Windows 双启动上的 wifi，我尝试了找到的每篇帖子，但都不起作用，全新安装 ubuntu fix 也没有解决问题，将 MAC 地址恢复为默认值也没有解决问题。我最终删除了 Windows 和 Garuda，只保留了主分区
sudo iwconfig wlp2s0 power off
cd /etc/pm/
sudo -H gedit wifi_pwr_off
这将打开一个空白文件，将其复制到空白文件：
#!/bin/sh
/sbin/iwconfig wlp2s0 power off
保存文件并关闭
sudo chmod u+x wifi_pwr_off
完毕