Ethernet connection not able to connect to default gatewayNot able to connect to local networkConflict between two network interfaces eth0 and eth1I can't connect to internet through wired connectionUbuntu 14.04 Ethernet Connectivity Issue on startupDual NIC not workingCannot find device “eth0”. Failed to bring up eth0VPN connects but no remote LAN accessI've managed to completely bork my network connection in 18.04Pages loading too long on new router (Ubuntu 18.04)NetworkManager GUI: How to affect a VLAN to an Ethernet Connection

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Ethernet connection not able to connect to default gateway


Not able to connect to local networkConflict between two network interfaces eth0 and eth1I can't connect to internet through wired connectionUbuntu 14.04 Ethernet Connectivity Issue on startupDual NIC not workingCannot find device “eth0”. Failed to bring up eth0VPN connects but no remote LAN accessI've managed to completely bork my network connection in 18.04Pages loading too long on new router (Ubuntu 18.04)NetworkManager GUI: How to affect a VLAN to an Ethernet Connection






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0















My Ethernet connection started randomly dropping. When I try to disable and enable networking, the system is not able to request a DHCP IP address. When I ping the default gateway I get:



connect: Network is unreachable


ifconfig returns



enp3s15: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500`
inet6 fe80::1810:354a:f174:7106 prefixlen 64 scopeid 0x20<link>
ether 00:1d:7d:9c:7c:63 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 704643030 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 429 bytes 27977 (27.9 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 429 bytes 27977 (27.9 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0


Sometimes rebooting helps. Sometimes not.



This is really strange. This machine has been running forever with no issues like this.









share







New contributor




Devehf is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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    0















    My Ethernet connection started randomly dropping. When I try to disable and enable networking, the system is not able to request a DHCP IP address. When I ping the default gateway I get:



    connect: Network is unreachable


    ifconfig returns



    enp3s15: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500`
    inet6 fe80::1810:354a:f174:7106 prefixlen 64 scopeid 0x20<link>
    ether 00:1d:7d:9c:7c:63 txqueuelen 1000 (Ethernet)
    RX packets 0 bytes 0 (0.0 B)
    RX errors 0 dropped 704643030 overruns 0 frame 0
    TX packets 0 bytes 0 (0.0 B)
    TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

    lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
    inet 127.0.0.1 netmask 255.0.0.0
    inet6 ::1 prefixlen 128 scopeid 0x10<host>
    loop txqueuelen 1000 (Local Loopback)
    RX packets 429 bytes 27977 (27.9 KB)
    RX errors 0 dropped 0 overruns 0 frame 0
    TX packets 429 bytes 27977 (27.9 KB)
    TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0


    Sometimes rebooting helps. Sometimes not.



    This is really strange. This machine has been running forever with no issues like this.









    share







    New contributor




    Devehf is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.






















      0












      0








      0








      My Ethernet connection started randomly dropping. When I try to disable and enable networking, the system is not able to request a DHCP IP address. When I ping the default gateway I get:



      connect: Network is unreachable


      ifconfig returns



      enp3s15: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500`
      inet6 fe80::1810:354a:f174:7106 prefixlen 64 scopeid 0x20<link>
      ether 00:1d:7d:9c:7c:63 txqueuelen 1000 (Ethernet)
      RX packets 0 bytes 0 (0.0 B)
      RX errors 0 dropped 704643030 overruns 0 frame 0
      TX packets 0 bytes 0 (0.0 B)
      TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

      lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
      inet 127.0.0.1 netmask 255.0.0.0
      inet6 ::1 prefixlen 128 scopeid 0x10<host>
      loop txqueuelen 1000 (Local Loopback)
      RX packets 429 bytes 27977 (27.9 KB)
      RX errors 0 dropped 0 overruns 0 frame 0
      TX packets 429 bytes 27977 (27.9 KB)
      TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0


      Sometimes rebooting helps. Sometimes not.



      This is really strange. This machine has been running forever with no issues like this.









      share







      New contributor




      Devehf is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.












      My Ethernet connection started randomly dropping. When I try to disable and enable networking, the system is not able to request a DHCP IP address. When I ping the default gateway I get:



      connect: Network is unreachable


      ifconfig returns



      enp3s15: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500`
      inet6 fe80::1810:354a:f174:7106 prefixlen 64 scopeid 0x20<link>
      ether 00:1d:7d:9c:7c:63 txqueuelen 1000 (Ethernet)
      RX packets 0 bytes 0 (0.0 B)
      RX errors 0 dropped 704643030 overruns 0 frame 0
      TX packets 0 bytes 0 (0.0 B)
      TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

      lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
      inet 127.0.0.1 netmask 255.0.0.0
      inet6 ::1 prefixlen 128 scopeid 0x10<host>
      loop txqueuelen 1000 (Local Loopback)
      RX packets 429 bytes 27977 (27.9 KB)
      RX errors 0 dropped 0 overruns 0 frame 0
      TX packets 429 bytes 27977 (27.9 KB)
      TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0


      Sometimes rebooting helps. Sometimes not.



      This is really strange. This machine has been running forever with no issues like this.







      networking ethernet troubleshooting





      share







      New contributor




      Devehf is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.










      share







      New contributor




      Devehf is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.








      share



      share






      New contributor




      Devehf is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      asked 4 mins ago









      DevehfDevehf

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      Devehf is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      Devehf is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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