The problem is with ethernet. After sometime ethernet network doesn't work. LAN works well but internet connectivity has problem. I can connect to same network via wifi and there is no problem. Bu through Ethernet for this particular machine I am seeing this problem.

[Anupam Datta]

The problem is with ethernet. After sometime ethernet network doesn't work. LAN works well but internet connectivity has problem. I can connect to same network via wifi and there is no problem. Bu through Ethernet for this particular machine I am seeing this problem. With 16.04 there was no issue at all.

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: network-manager 1.8.4-1ubuntu3 [modified: usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf]
ProcVersionSignature: Ubuntu 4.13.0-36.40-generic 4.13.13
Uname: Linux 4.13.0-36-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Fri Feb 23 11:52:12 2018
IpRoute:
 default via 10.100.10.1 dev eno1 proto static metric 20100
 10.100.10.0/23 dev eno1 proto kernel scope link src 10.100.11.8 metric 100
 169.254.0.0/16 dev eno1 scope link metric 1000
 169.254.0.0/16 dev eno1 scope link metric 1001
 192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1 linkdown
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
RfKill:

SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.NetworkManager.NetworkManager.conf: 2018-01-08T14:11:20.564841
nmcli-dev:
 DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH
 virbr0 bridge connected /org/freedesktop/NetworkManager/Devices/3 virbr0 f7ed1838-6b56-4032-99f9-602539799a67 /org/freedesktop/NetworkManager/ActiveConnection/2
 eno1 ethernet connected /org/freedesktop/NetworkManager/Devices/2 Wired connection 1 84d5092f-8385-491c-acab-38e47bc5ffc5 /org/freedesktop/NetworkManager/ActiveConnection/16
 lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/1 -- -- --
 virbr0-nic tun unmanaged /org/freedesktop/NetworkManager/Devices/4 -- -- --
nmcli-nm:
 RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN
 running 1.8.4 connected started limited enabled enabled enabled enabled enabled

[Kai-Heng Feng (kaihengfeng)]

Please attach `dmesg` when this issue happens, thanks!

[penalvch (penalvch)]

Anupam Datta, could you please run the following command from a terminal as it will automatically gather and attach updated debug information to this report:

apport-collect 1751198

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]