在我的主 Ubuntu 16.04 机器上,我有时会失去连接。当我尝试 ping Google DNS 时,我收到响应:“连接:网络无法访问”。
我可以通过重置网络接口、关闭有线网络然后使用默认 GUI 按钮打开来立即修复此问题。有人知道问题出在哪里吗?
这是 ifconfig 输出:
enp2s0 Link encap:Ethernet HWaddr c8:9c:dc:d9:76:59
inet addr:10.0.0.1 Bcast:10.0.0.255 Mask:255.255.255.0
inet6 addr: fe80::c46:e5e8:d89f:b5c6/64 Scope:Link
inet6 addr: fdee:8069:28f3:0:5a3d:7482:bbd4:6520/64 Scope:Global
inet6 addr: fdee:8069:28f3:0:685d:475b:a11a:b501/64 Scope:Global
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:344379 errors:0 dropped:0 overruns:0 frame:0
TX packets:190782 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:404790948 (404.7 MB) TX bytes:14956805 (14.9 MB)
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:24411 errors:0 dropped:0 overruns:0 frame:0
TX packets:24411 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:76904248 (76.9 MB) TX bytes:76904248 (76.9 MB)
路线输出:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default myhome.mynet 0.0.0.0 UG 100 0 0 enp2s0
10.0.0.0 * 255.255.255.0 U 100 0 0 enp2s0
link-local * 255.255.0.0 U 1000 0 0 enp2s0
sudo lshw -C 网络
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:02:00.0
logical name: enp2s0
version: 06
serial: c8:9c:dc:d9:76:59
size: 100Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl_nic/rtl8168e-2.fw ip=10.0.0.1 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
resources: irq:26 ioport:e000(size=256) memory:fe400000-fe400fff memory:d0000000-d0003fff
如果有任何其他有用的命令/文件我应该发布请告诉我。
答案1
正如我所想,您正在为以太网使用 r8169 驱动程序,这是一个有缺陷的驱动程序。它的症状之一是失去连接。修复很简单,安装r8168-dkms
。
在terminal
...
sudo apt-get update
sudo apt-get install dkms r8168-dkms
reboot