wlp3s0: flags=4163  mtu 1500
        inet 192.168.1.112  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::90bc:f48c:caf0:e6fc  prefixlen 64  scopeid 0x20
        ether 74:e5:43:06:59:b7  txqueuelen 1000  (Ethernet)
        RX packets 124975  bytes 143504893 (136.8 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 87433  bytes 7642517 (7.2 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

shancai@shancai-PC:~/Desktop$ sudo ifconfig wlp3s0 down
shancai@shancai-PC:~/Desktop$ sudo ifconfig wlp3s0 up

每次连不上都需要重启网卡，才能重新连上，然后过个两三分钟又断开

网络配置
shancai@shancai-PC:~/Desktop$ cat /etc/NetworkManager/NetworkManager.conf
[main]
plugins=ifupdown,keyfile

[ifupdown]
managed=true

[device]
wifi.scan-rand-mac-address=no