Same problem. Using Mint. No VM involved.
Switched from Windows to Linux just a few days ago.
This occurred two times in three days now.
Never did anything network related, so all my settings should be the default
ones.
$ sudo lshw -class network
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
logical name: enp3s0
version: 0c
serial: e0:3f:49:e8:4f:66
size: 1Gbit/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=rtl8168g-2_0.0.1 02/06/13
ip=192.168.2.1 latency=0 link=yes multicast=yes port=MII speed=1Gbit/s
resources: irq:27 ioport:d000(size=256) memory:f7100000-f7100fff
memory:f2100000-f2103fff
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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to network-manager in Ubuntu.
https://bugs.launchpad.net/bugs/1586528
Title:
Avahi-daemon withdraws address record
Status in avahi package in Ubuntu:
Invalid
Status in network-manager package in Ubuntu:
Confirmed
Bug description:
For some reason, if I leave my Ubuntu VM up for a prolonged period of
time the machine will lose connection to the network. ip addr shows
that the nic port no longer has an address and an examination of the
syslog shows this:
May 27 14:19:38 matt-VirtualBox avahi-daemon[590]: Withdrawing address record
for 10.0.2.15 on enp0s3.
May 27 14:19:38 matt-VirtualBox avahi-daemon[590]: Leaving mDNS multicast
group on interface enp0s3.IPv4 with address 10.0.2.15.
May 27 14:19:38 matt-VirtualBox avahi-daemon[590]: Interface enp0s3.IPv4 no
longer relevant for mDNS.
for no known reason.
The only reliable way to get the network to come back (that I have
found) is a full reboot.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: avahi-daemon 0.6.32~rc+dfsg-1ubuntu2
ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8
Uname: Linux 4.4.0-22-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
CurrentDesktop: Unity
Date: Fri May 27 15:11:34 2016
InstallationDate: Installed on 2015-10-22 (218 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
SourcePackage: avahi
UpgradeStatus: Upgraded to xenial on 2016-03-30 (58 days ago)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1586528/+subscriptions
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