我的 ubuntu 电脑遇到了一个奇怪的问题。我的互联网连接似乎每隔一分钟左右才能正常工作一小会儿。刚好够下载 POP3 电子邮件，但不足以升级 100 MB 的软件包。
我尝试了以下方法来评估这个问题：
kadak@webcast:~$ ping 192.168.0.2
…
--- statistiques ping 192.168.0.2 ---
1382 paquets transmis, 219 reçus, +3 erreurs, 84,1534 % paquets perdus, temps 1410789 ms
rtt min/avg/max/mdev = 0.499/2.597/123.335/11.061 ms, tuyau 3
84％的数据包丢失，这是一个巨大的数字。192.168.0.2 是我们的 DHCP 服务器。
我在另一台运行 Windows 10 的电脑上尝试了同样的操作，连接到相同的 wifi 接入点，没有丢失数据包。因此，我排除了网络问题。
我尝试通过以太网电缆而不是 Wifi 连接到接入点……问题依旧。因此，我认为 Wifi 硬件存在问题。
这是我的系统信息：
kadak@webcast:~$ uname -a
Linux webcast 5.4.0-77-generic #86-Ubuntu SMP Thu Jun 17 02:35:03 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
有人能提供一些建议来进一步调查这个问题吗？
干杯，
卡达克
编辑：这是 syslog 的结果（我猜很有趣的东西，但对我来说太技术化了）：
Jul 5 15:50:46 webcast systemd[1]: Started Network Manager Script Dispatcher Service.
Jul 5 15:50:56 webcast systemd[1]: NetworkManager-dispatcher.service: Succeeded.
Jul 5 15:51:07 webcast whoopsie[1555]: [15:51:07] Cannot reach: https://daisy.ubuntu.com
Jul 5 15:51:29 webcast wpa_supplicant[1217]: wlp2s0: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-68 noise=-95 txrate=1000
Jul 5 15:52:33 webcast wpa_supplicant[1217]: wlp2s0: CTRL-EVENT-SIGNAL-CHANGE above=0 signal=-72 noise=-95 txrate=58500
Jul 5 15:53:17 webcast dbus-daemon[1925]: [session uid=1000 pid=1925] Activating via systemd: service name='org.freedesktop.Tracker1' unit='tracker-store.service' requested by ':1.2' (uid=1000 pid=1923 comm="/usr/libexec/tracker-miner-fs " label="unconfined")
Jul 5 15:53:17 webcast dbus-daemon[1925]: [session uid=1000 pid=1925] Successfully activated service 'org.freedesktop.Tracker1'
Jul 5 15:53:17 webcast systemd[1915]: Starting Tracker metadata database store and lookup manager...
Jul 5 15:53:17 webcast systemd[1915]: Started Tracker metadata database store and lookup manager.
Jul 5 15:53:20 webcast wpa_supplicant[1217]: wlp2s0: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-70 noise=-95 txrate=65000
Jul 5 15:53:48 webcast tracker-store[14704]: OK
Jul 5 15:53:48 webcast systemd[1915]: tracker-store.service: Succeeded.
Jul 5 15:54:03 webcast wpa_supplicant[1217]: wlp2s0: CTRL-EVENT-SIGNAL-CHANGE above=0 signal=-72 noise=-95 txrate=65000
Jul 5 15:54:27 webcast wpa_supplicant[1217]: wlp2s0: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-69 noise=-95 txrate=65000
Jul 5 15:54:46 webcast wpa_supplicant[1217]: wlp2s0: CTRL-EVENT-SIGNAL-CHANGE above=0 signal=-70 noise=-95 txrate=65000
Jul 5 15:55:26 webcast wpa_supplicant[1217]: wlp2s0: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-66 noise=-95 txrate=65000
Jul 5 15:57:45 webcast wpa_supplicant[1217]: wlp2s0: CTRL-EVENT-SIGNAL-CHANGE above=0 signal=-72 noise=-95 txrate=65000
Jul 5 15:59:29 webcast NetworkManager[1197]: <info> [1625493569.1809] manager: NetworkManager state is now CONNECTED_GLOBAL
Jul 5 15:59:29 webcast systemd[1]: Starting Network Manager Script Dispatcher Service...
Jul 5 15:59:29 webcast whoopsie[1555]: [15:59:29] The default IPv4 route is: /org/freedesktop/NetworkManager/ActiveConnection/5
Jul 5 15:59:29 webcast whoopsie[1555]: [15:59:29] Not a paid data plan: /org/freedesktop/NetworkManager/ActiveConnection/5
Jul 5 15:59:29 webcast whoopsie[1555]: [15:59:29] Found usable connection: /org/freedesktop/NetworkManager/ActiveConnection/5
Jul 5 15:59:29 webcast dbus-daemon[1196]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.12' (uid=0 pid=1197 comm="/usr/sbin/NetworkManager --no-daemon " label="unconfined")
Jul 5 15:59:29 webcast dbus-daemon[1196]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Jul 5 15:59:29 webcast systemd[1]: Started Network Manager Script Dispatcher Service.
Jul 5 15:59:30 webcast whoopsie[1555]: [15:59:30] online
Jul 5 15:59:39 webcast systemd[1]: NetworkManager-dispatcher.service: Succeeded.
Jul 5 15:59:50 webcast wpa_supplicant[1217]: wlp2s0: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-69 noise=-95 txrate=58500
Jul 5 16:00:37 webcast wpa_supplicant[1217]: wlp2s0: CTRL-EVENT-SIGNAL-CHANGE above=0 signal=-72 noise=-95 txrate=58500