我无法在台式电脑上建立有线互联网连接。它尝试连接到“有线连接 1”，即使几分钟后它最终（并非总是）成功“连接”（根据面板上的网络指示器图标），我还是无法上网。有什么解决办法吗？
:~$ ping google.com
ping: unknown host google.com
终端：
:~$ ifconfig
enp0s4 Link encap:Ethernet HWaddr 00:1d:60:a1:87:5b
inet6 addr: 2a02:587:d06:c500:44ef:f096:fe1c:fcff/64 Scope:Global
inet6 addr: fe80::1542:7931:b71a:1a06/64 Scope:Link
inet6 addr: 2a02:587:d06:c500:1070:a40c:9369:f2a1/64 Scope:Global
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:23 errors:0 dropped:0 overruns:0 frame:0
TX packets:428 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1984 (1.9 KB) TX bytes:45238 (45.2 KB)
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:2008 errors:0 dropped:0 overruns:0 frame:0
TX packets:2008 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:213140 (213.1 KB) TX bytes:213140 (213.1 KB)
终端：
:~$ cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
终端：
:~$ cat /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 127.0.1.1
终端：
:~$ sudo lshw -C network
*-network
description: Ethernet interface
product: 191 Gigabit Ethernet Adapter
vendor: Silicon Integrated Systems [SiS]
physical id: 4
bus info: pci@0000:00:04.0
logical name: enp0s4
version: 02
serial: 00:1d:60:a1:87:5b
size: 10Mbit/s
capacity: 100Mbit/s
width: 32 bits
clock: 33MHz
capabilities: pm bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=sis190 driverversion=1.4 duplex=half latency=0 link=yes multicast=yes port=MII speed=10Mbit/s
resources: irq:19 memory:fbffcc00-fbffcc7f ioport:ec00(size=128)
终端：
:~$ cat /etc/NetworkManager/NetworkManager.conf
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=false
终端：
:~$ cat /var/lib/NetworkManager/NetworkManager.state
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
终端：
:~$ ip -6 route show
2a02:587:d06:c500::/64 dev enp0s4 proto kernel metric 256 expires 85777sec pref medium
fe80::/64 dev enp0s4 proto kernel metric 256 pref medium
default via fe80::1 dev enp0s4 proto static metric 100 pref medium
终端：
:~$ ping6 -c4 2001:4860:4860::8888
PING 2001:4860:4860::8888(2001:4860:4860::8888) 56 data bytes
From 2a02:587:d06:c500:496e:2d4f:aff4:7285 icmp_seq=1 Destination unreachable: Address unreachable
From 2a02:587:d06:c500:496e:2d4f:aff4:7285 icmp_seq=2 Destination unreachable: Address unreachable
From 2a02:587:d06:c500:496e:2d4f:aff4:7285 icmp_seq=3 Destination unreachable: Address unreachable
From 2a02:587:d06:c500:496e:2d4f:aff4:7285 icmp_seq=4 Destination unreachable: Address unreachable
--- 2001:4860:4860::8888 ping statistics ---
4 packets transmitted, 0 received, +4 errors, 100% packet loss, time 3015ms
“kalimera” 是无线连接的配置文件。这里没有以太网连接的配置文件。终端：
: /etc/NetworkManager/system-connections$ ls
kalimera
我尝试在旧帖子中寻找解决方案，但没有成功。我从 lubuntu 15.10 开始就遇到了这个问题。最近我安装了目前使用的新版本 lubuntu 16.04，但到目前为止没有任何变化。电脑是双启动的，在另一个操作系统上一切正常。所以我认为这不是硬件问题。我对 linux 不太熟悉。非常感谢！