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Kubuntu 21.10 停止通过 wifi 连接互联网

tag-icon • tag-icon networking wireless kubuntu 21.10
Kubuntu 21.10 停止通过 wifi 连接互联网

问题：连接家庭 wifi 后无互联网连接“连接受限”

机器详细信息：Dell Precision 3560 / Kubuntu 21.10（从 21.04 升级）

日志：

$ ping 8.8.8.8
ping: connect: Network is unreachable
$ sudo dmesg | grep iwl
[   28.768547] iwlwifi 0000:00:14.3: enabling device (0000 -> 0002)
[   28.777747] iwlwifi 0000:00:14.3: api flags index 2 larger than supported by driver
[   28.777761] iwlwifi 0000:00:14.3: TLV_FW FSEQ_VERSION: FSEQ Version: 89.3.35.37
[   28.777980] iwlwifi 0000:00:14.3: loaded firmware version 63.c04f3485.0 QuZ-a0-hr-b0-63.ucode op_mode iwlnvm
[   28.872420] iwlwifi 0000:00:14.3: Detected Intel(R) Wi-Fi 6 AX201 160MHz, REV=0x354
[   29.060415] iwlwifi 0000:00:14.3: base HW address: ec:63:d7:d2:b8:83
[   29.078756] iwlwifi 0000:00:14.3: wlp0s20f3: renamed from wlan0
$ lspci -knn | grep Net -A3
0000:00:14.3 Network controller [0280]: Intel Corporation Wi-Fi 6 AX201 [8086:a0f0] (rev 20)
        Subsystem: Intel Corporation Wi-Fi 6 AX201 [8086:4070]
        Kernel driver in use: iwlwifi
        Kernel modules: iwlwifi
$ rfkill list
0: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no
1: dell-wifi: Wireless LAN
        Soft blocked: no
        Hard blocked: no
2: dell-bluetooth: Bluetooth
        Soft blocked: no
        Hard blocked: no
3: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no

边注：我的另一台笔记本电脑 Thinkpad T550/Kubuntu 21.10 使用同一个 WiFi 网络上网没有问题。

解决方案：Kubuntu 21.10 停止通过 wifi 连接互联网

答案1

解决方案

我注意到当我从手机连接到热点时，互联网可以正常工作。因此，我做了：

$ sudo su-
# cd /etc/NetworkManager/system-connections
# rm FAULTY_CONNECTION_NAME
# exit
$ nmcli con delete FAULTY_CONNECTION_NAME

并从头开始重新建立连接。

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