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Ubuntu 20.04 连接 wifi 但无法上网

tag-icon • tag-icon networking wireless network-manager dns iwlwifi
Ubuntu 20.04 连接 wifi 但无法上网

你好，我最近安装了 Ubuntu 20.04，我不知道自己不小心做了什么，所以现在我无法访问互联网，首先它只是连接到我的 ADSL，我通过手动添加 ip 和掩码和 dns 来解决这个问题，但现在每个 wifi 连接都无法访问互联网，我尝试了这些命令，但没有成功：

modprobe -r iwlwifi

modprobe iwlwifi

还：

service NetworkManager restart

以下是一些命令的输出：

~ ifconfig -a

docker0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500

        inet 172.17.0.1  netmask 255.255.0.0  broadcast 172.17.255.255
        ether 02:42:6d:38:e0:0e  txqueuelen 0  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0


lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536

        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 2643  bytes 207916 (207.9 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 2643  bytes 207916 (207.9 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0


usb0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500

        ether ea:df:c6:e3:de:73  txqueuelen 1000  (Ethernet)
        RX packets 86882  bytes 114770782 (114.7 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 58103  bytes 7138785 (7.1 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0




wlp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500

        inet 192.168.1.150  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::fae4:e3ff:fe23:8d86  prefixlen 64  scopeid 0x20<link>
        ether f8:e4:e3:23:8d:86  txqueuelen 1000  (Ethernet)
        RX packets 216  bytes 18941 (18.9 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 742  bytes 76318 (76.3 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0```


~ nmcli 
wlp2s0: connected to ie_farzad
        "Intel 6 AX200"
        wifi (iwlwifi), F8:E4:E3:23:8D:86, hw, mtu 1500
        ip4 default
        inet4 192.168.1.150/24
        route4 192.168.1.0/24
        route4 169.254.0.0/16
        route4 0.0.0.0/0
        inet6 fe80::fae4:e3ff:fe23:8d86/64
        route6 fe80::/64

docker0: connected to docker0
        "docker0"
        bridge, 02:42:6D:38:E0:0E, sw, mtu 1500
        inet4 172.17.0.1/16
        route4 172.17.0.0/16

usb0: disconnected
        "LG G2 Android Phone"
        1 connection available
        ethernet (rndis_host), EA:DF:C6:E3:DE:73, autoconnect, hw, mtu 1500

p2p-dev-wlp2s0: disconnected
        "p2p-dev-wlp2s0"
        wifi-p2p, hw

lo: unmanaged
        "lo"
        loopback (unknown), 00:00:00:00:00:00, sw, mtu 65536

DNS configuration:
        servers: 8.8.8.8 8.8.4.4
        interface: wlp2s0

我也尝试设置 DHCP 自动设置 ip 和掩码，但问题仍然存在

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