ubuntu16.04与win10双系统，ubuntu只能上无线网上不了有线

pkwcxy · #1

之前双系统的时候ubuntu是可以上有线与无线的，后来莫名其妙就只能用无线了……不过中间手贱卸载过一次ubuntu自带的python2.7，不知道是不是这个引起的，后来python被我恢复了，不过可能网络模块回复的不完全？我也不太清楚。
win10网络唤醒已经关了，还是不行。
我的网络是校园网，每次登录要先登一个输用户名密码的界面，我连有线网，根本ping不通这个ip地址，所以就上不了网。
连有线网的时候可以ping 通127.0.0.1。
求大神指点。

sudo lshw -C network的结果：

代码：全选

  *-network               
       description: Ethernet interface
       product: Ethernet Connection (2) I219-V
       vendor: Intel Corporation
       physical id: 1f.6
       bus info: pci@0000:00:1f.6
       logical name: enp0s31f6
       version: 00
       serial: 30:9c:23:a2:69:30
       size: 1Gbit/s
       capacity: 1Gbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k duplex=full firmware=0.8-4 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
       resources: irq:130 memory:df200000-df21ffff
  *-network
       description: Wireless interface
       physical id: 2
       bus info: usb@1:9
       logical name: wlx30b49e7ecc4e
       serial: 30:b4:9e:7e:cc:4e
       capabilities: ethernet physical wireless
       configuration: broadcast=yes driver=mt7601u driverversion=4.15.0-44-generic firmware=N/A ip=172.18.9.23 link=yes multicast=yes wireless=IEEE 802.11

连有线网的时候ifconfig的结果：

代码：全选

enp0s31f6 Link encap:Ethernet  HWaddr 30:9c:23:a2:69:30  
          inet addr:192.168.1.143  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::8e4d:a4a:c8b0:5a8c/64 Scope:Link
          inet6 addr: 2400:dd01:102f:0:bcdc:f1f0:ee7e:915a/64 Scope:Global
          UP BROADCAST RUNNING MULTICAST  MTU:8194  Metric:1
          RX packets:1289260 errors:0 dropped:435949 overruns:0 frame:0
          TX packets:963 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:97998675 (97.9 MB)  TX bytes:582568 (582.5 KB)
          Interrupt:16 Memory:df200000-df220000 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:6860 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6860 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:677294 (677.2 KB)  TX bytes:677294 (677.2 KB)