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Thread: Ubuntu incorrectly reports no internet connection

  1. #1
    Join Date
    Aug 2018
    Beans
    5

    Ubuntu incorrectly reports no internet connection

    Hello Ubuntu forums,

    Occasionally Ubuntu 18.04 will report that there's no internet connection (the icon in the top right is greyed out). Despite this, I can load webpages in firefox and pinging an address from the command line works.

    The problem is that Spotify sees that there's no connection and therefore won't play any music until the problem goes away, which it does on it's own after a few minutes.

    Any ideas what might cause this? I'm on a wired connection.

    Thank you for your assistance,
    Sam

  2. #2
    Join Date
    Mar 2018
    Location
    Germany
    Beans
    76
    Distro
    Lubuntu

    Re: Ubuntu incorrectly reports no internet connection

    Run
    Code:
    ip a
    cat /etc/resolv.conf
    systemd-resolve --status #you have to press arr down to see the complete output
    and post it here.

  3. #3
    Join Date
    Aug 2018
    Beans
    5

    Re: Ubuntu incorrectly reports no internet connection

    Thanks for the reply. Here's the output

    Code:
    sam@hal-9000:~>ip a
    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
        link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
        inet 127.0.0.1/8 scope host lo
           valid_lft forever preferred_lft forever
        inet6 ::1/128 scope host 
           valid_lft forever preferred_lft forever
    2: enp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
        link/ether 54:04:a6:49:9c:b6 brd ff:ff:ff:ff:ff:ff
        inet 192.168.0.16/24 brd 192.168.0.255 scope global dynamic noprefixroute enp2s0
           valid_lft 509020sec preferred_lft 509020sec
        inet6 fd00:fc:8d44:5512:c1b4:685a:4930:5ba6/64 scope global temporary dynamic 
           valid_lft 535427sec preferred_lft 76754sec
        inet6 fd00:fc:8d44:5512:4863:243d:1881:1cda/64 scope global temporary deprecated dynamic 
           valid_lft 509022sec preferred_lft 0sec
        inet6 fd00:fc:8d44:5512:fc29:852:a74a:c62f/64 scope global dynamic mngtmpaddr noprefixroute 
           valid_lft 535427sec preferred_lft 401570sec
        inet6 fe80::f8c5:ad31:34fc:f1af/64 scope link noprefixroute 
           valid_lft forever preferred_lft forever
    3: wlp4s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
        link/ether 50:3e:aa:56:8c:eb brd ff:ff:ff:ff:ff:ff
    6: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 500
        link/none 
        inet 10.240.101.7/32 scope global tun0
           valid_lft forever preferred_lft forever
        inet6 fe80::1b99:f2c:97de:622e/64 scope link stable-privacy 
           valid_lft forever preferred_lft forever
    Code:
    sam@hal-9000:~>cat /etc/resolv.conf
    # This file is managed by man:systemd-resolved(8). Do not edit.
    #
    # This is a dynamic resolv.conf file for connecting local clients to the
    # internal DNS stub resolver of systemd-resolved. This file lists all
    # configured search domains.
    #
    # Run "systemd-resolve --status" to see details about the uplink DNS servers
    # currently in use.
    #
    # Third party programs must not access this file directly, but only through the
    # symlink at /etc/resolv.conf. To manage man:resolv.conf(5) in a different way,
    # replace this symlink by a static file or a different symlink.
    #
    # See man:systemd-resolved.service(8) for details about the supported modes of
    # operation for /etc/resolv.conf.
    
    nameserver 127.0.0.53
    options edns0
    search hitronhub.home
    Code:
    sam@hal-9000:~>systemd-resolve --status #you have to press arr down to see the complete output
    Global
              DNSSEC NTA: 10.in-addr.arpa
                          16.172.in-addr.arpa
                          168.192.in-addr.arpa
                          17.172.in-addr.arpa
                          18.172.in-addr.arpa
                          19.172.in-addr.arpa
                          20.172.in-addr.arpa
                          21.172.in-addr.arpa
                          22.172.in-addr.arpa
                          23.172.in-addr.arpa
                          24.172.in-addr.arpa
                          25.172.in-addr.arpa
                          26.172.in-addr.arpa
                          27.172.in-addr.arpa
                          28.172.in-addr.arpa
                          29.172.in-addr.arpa
                          30.172.in-addr.arpa
                          31.172.in-addr.arpa
                          corp
                          d.f.ip6.arpa
                          home
                          internal
                          intranet
                          lan
                          local
                          private
                          test
    
    Link 6 (tun0)
          Current Scopes: none
           LLMNR setting: yes
    MulticastDNS setting: no
          DNSSEC setting: no
        DNSSEC supported: no
    
    Link 3 (wlp4s0)
          Current Scopes: none
           LLMNR setting: yes
    MulticastDNS setting: no
          DNSSEC setting: no
        DNSSEC supported: no
    
    Link 2 (enp2s0)
          Current Scopes: DNS
           LLMNR setting: yes
    MulticastDNS setting: no
          DNSSEC setting: no
        DNSSEC supported: no
             DNS Servers: 192.168.0.1
              DNS Domain: ~.
                          hitronhub.home

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