Workaround worked for me and fixed multiple issues! I can use DNS while
being connected to a VPN again :)
Plurtu <1633...@bugs.launchpad.net> schrieb am Sa., 22. Okt. 2016,
10:25:

> More people with the same problem:
> https://ubuntuforums.org/showthread.php?t=2340142
>
> Workaround: Edit /etc/NetworkManager/NetworkManager.conf and remove the
> line "dns=dnsmasq".
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1633912
>
> Title:
>   Problem with DNS resolution after suspend
>
> Status in network-manager package in Ubuntu:
>   Confirmed
>
> Bug description:
>   I upgraded my laptop to 16.10 yesterday. Sometimes after suspend I
>   have network issues, one time I was not able to connect to a wifi
>   network (might report another bug if this occurees again, but maybe it
>   is related, as in network-manager is in some broken state after
>   suspend).
>
>   Here is whats happening pretty often: After resume from suspend I have
>   a solid network connection, no problem to ping machines in LAN or on
>   the internet. But DNS resolution is broken until I restart the
>   network-manager service.
>
>   I ran ubuntu-bug while DNS was broken, so if anything gets log-ed it
>   should be in there.
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 16.10
>   Package: network-manager 1.2.4-0ubuntu1
>   ProcVersionSignature: Ubuntu 4.8.0-22.24-generic 4.8.0
>   Uname: Linux 4.8.0-22-generic x86_64
>   ApportVersion: 2.20.3-0ubuntu8
>   Architecture: amd64
>   CurrentDesktop: Unity
>   Date: Sun Oct 16 21:01:09 2016
>   IfupdownConfig:
>    # interfaces(5) file used by ifup(8) and ifdown(8)
>    auto lo
>    iface lo inet loopback
>   InstallationDate: Installed on 2016-09-28 (18 days ago)
>   InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64
> (20160719)
>   IpRoute:
>    default via 192.168.0.1 dev wlp58s0  proto static  metric 600
>    169.254.0.0/16 dev br-541a0f9bec93  scope link  metric 1000
>    172.17.0.0/16 dev docker0  proto kernel  scope link  src 172.17.0.1
> linkdown
>    172.18.0.0/16 dev br-541a0f9bec93  proto kernel  scope link  src
> 172.18.0.1
>    192.168.0.0/24 dev wlp58s0  proto kernel  scope link  src
> 192.168.0.118  metric 600
>   NetworkManager.state:
>    [main]
>    NetworkingEnabled=true
>    WirelessEnabled=true
>    WWANEnabled=true
>   SourcePackage: network-manager
>   UpgradeStatus: Upgraded to yakkety on 2016-10-15 (1 days ago)
>   nmcli-nm:
>    RUNNING  VERSION  STATE      STARTUP  CONNECTIVITY  NETWORKING
> WIFI-HW  WIFI     WWAN-HW  WWAN
>    running  1.2.4    connected  started  full          enabled
>  enabled  enabled  enabled  enabled
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1633912/+subscriptions
>

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https://bugs.launchpad.net/bugs/1633912

Title:
  Problem with DNS resolution after suspend

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https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1633912/+subscriptions

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