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Questions tagged [ethernet]

Ethernet is a way of connecting computers together in a local area network or LAN.

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1answer
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Get MAC address of connected device

This is my network setup. In case of PC 1 send a packet to PC 2 and router 1 has a default route to Eth 1. To transfer the packet from router 1 Eth 1 to router 2 Eth 1, the packet will be sent with ...
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“Activation of network connection failed” for wired connection, even though it works in interim (18.04)

I am connecting an external device via ethernet. In network manager, it shows the wired connection as "Connecting". I am able to ping and SSH to the remote device during this phase, the connection ...
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Ubuntu 18.04 minimal server has two ip addresses!

I'm seeing two different IP addresses on my Odroid XU4. I only noticed after I set up a Unifi controller on the box, but then tried to ssh into both of the addresses with success. I only want 192.168....
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Issues with ethernet after updates ubuntu 16.04

I was prompted by Software Updater to update my device, which I did after finishing the update and rebooting it, suddenly the Ethernet Connection seems to have stopped working. It gets stuck in the ...
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Sporadic problems with IPv4 not available via Ethernet: how to diagnose the culprit?

I have Ubuntu 16.04. From time to time LAN link does not function properly right from the boot. Chrome complains that DNS is not available; I cannot access the router using its IP address (192.168.1....
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9 views

Loosing my Network Connection after waking from suspend 16.04

After most recent update to (version 16.04) Ethernet connection is not reestablishing after waking from suspend. Currently, only a reboot solves the issue. Thanks for your time and help.
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269 views

No internet connection on kernels 4.4.0-131-generic and newer

My last kernel update with a working Internet connection is on 4.4.0-127-generic (Ubuntu 16.04). I have tried both 4.4.0-131-generic and 4.4.0-133-generic and it doesn't work whatsoever, there's no ...
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Trouble connecting to ethernet in ubuntu 16.04 LTS

I bought an HP 6-th Gen laptop recently and installed Ubuntu 16.04 on it. I know this question has been asked before but I really can't get my ethernet working. I am unable to download the r8168-dkms ...
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58 views

Ubuntu 18.04 Spamming Network with Mac Control Pause Packets

Last year, I installed Ubuntu 16.04 on a machine that's been running since 2011 (updated the hardware a few times since then, but it's been running fine for years at a time). This past May, I updated ...
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Wired connection IP configuration not available

I am using Kubuntu 16.04. Up until today, my wired internet connection worked fine. My wireless internet connection still does. After performing the following updates: Start-Date: 2018-08-04 15:29:...
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1answer
33 views

Ethernet not working in 18.04. Wi-fi stops working after some time

I have searched a lot for this, but haven't found a solution yet! Here are some relevant command outputs: $ ifconfig eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 ether e0:...
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1answer
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Direct network traffic through one connection+proxy, except for a whitelist

How can I direct traffic to certain sites (https://drive.google.com, https://www.npmjs.com,…) through one network connection (“whitelist”), while all else through another? **Ugly extra:**The latter ...
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29 views

systems in wired and wireless connecteion receive data wirelessly but not wired in web browser

I have 2 ubuntu systems in LAN connected wirelessly as well as with wired ethernet cable. One is ubuntu 14.04 which i have made as accesspoint. And the other is 16.04 made as base station. 1. The a.p ...
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14 views

Unclaimed Network Realtek 8100

Refreshing an older PC with Xubuntu 16.04 and failing to get a working wired Ethernet connection. lspci -nn | grep 0200 02:0c.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL-8100/...
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14 views

Cannot change address Range 10.42.0.x in 'Shared to other computer' Method

I have a raspberry pi 1 B+ and My Kubuntu 18.04 in place. Now I need to connect them to the same network. I used Ethernet (Not crossover cable) cable for direct connection These are my Settings IPv4 ...
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1answer
156 views

“Activation of network connection failed” for ethernet connection

I have installed Ubuntu 18.04 on a Surface Book with dual boot, and I can't get the ethernet connection to work. Although the wifi connects, I keep getting the "activation of network connection failed"...
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18 views

How to use 2 network connections speeds at the same time?

I have a 4G broadband, and an ethernet cable, both are having different IP addresses (different ISPs). I'm connected to the 4G router using Wifi, the problem is that the ethernet cable is really slow,...
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1answer
56 views

Server 16.04: configuring Wi-Fi connection (USB adapter)

Edit: sudo ifdown wlx000e0008833e && sudo ifup -v wlx000e0008833e: Configuring interface wlx000e0008833e=wlx000e0008833e (inet) /bin/run-parts --exit-on-error --verbose /etc/network/if-pre-...
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27 views

Having problems getting ethernet adapters working on server

I had a 16.04 Ubuntu eMachine server up and running, then the machine got hit with a power surge. I got a newer, nicer server from a friend and reinstalled the hard drives, but am having issues ...
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2answers
624 views

Ubuntu (Desktop + Server) 16.04: adding Ethernet network (LAN)

Situation: I have a PC and a server (not virtual machine). I'm completely new to configuring hardware. I need to setup Ethernet network using LAN cable. Ethernet cable is connected directly from PC ...
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43 views

eth0 and wlan0 not working together

ubuntu14.04 i made as accesspoint.And receiving data wirelessly. but whenever i am connecting ethernet cable, ubuntu is not receiving any wifi data. This same set up used to work earlier before i ...
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0answers
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Host (Ubuntu 18.04) WiFi, Guest Wired recipe with Oracle VirutalBox

My host machine is running Ubuntu 18.04, and I am connected to a WiFi network A. I have a ethernet cord plugged in, which is connected to network B, but I can only connect to the internet with a ...
0
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1answer
77 views

Cannot receive DHCP OFFER on ethernet

I'm using Ubuntu 18.04. I have exactly the same issue as this thread, my laptop's ethernet/wired cannot receive DHCP offer. I can verify it's not network/server issue, as it works in live cd. Other ...
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High ping on Ethernet adapters Ubuntu 16 and Ubuntu 18.04 Desktop/Server

I installed Ubuntu 18.04 server to only run a MediaWiki site, however the time it takes to load a page was ungodly slow. I followed just about every Ethernet configuration document I could find. One ...
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0answers
90 views

Lan/Ethernet not working after upgrading to 18.04 LTS

I just upgraded from 16.04 LTS to 18.04 LTS and lost my previously working lan connection. I did some testing as indicated by @Eraseth from LAN connection does not work after upgrade to 18.04 and seem ...
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0answers
35 views

Networking broken (Ethernet and wireless)

my Ethernet and wireless both stopped working suddenly last week while connecting to a Travelodge WiFi. I have dual boot and Internet connection works fine on the Windows partition, so it's not a ...
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0answers
26 views

Ping returns Unknown Host and no eth0

Per this AskUbuntu post (ifup eth0: unknown host) the OP couldn't ping google.com His answer was to modify /etc/network/interfaces as follows: auto enp0s2 iface enp0s2 inet dhcp After re-...
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2answers
63 views

Ubuntu 14.04 4 nic networking

I have the following.. eth3 - default route, usb dongle to the internet. 192.168.8.0/24 eth2 - nic to wireless router for streaming webcam 192.168.3.0/24 eth1 - nic to wireless router for ...
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1answer
708 views

How to enable both eth0 and wwan0 in Ubuntu?

My Scenario is: - eth0(Ethernet) port for device communication - wwan0(GSM) for my internet connectivity How do i enable both in ubuntu , i have tried few ways but always anyone is getting enabled . ...
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35 views

Ethernet interface doesn't get DHCP address after adding bridged interface

On an Ubuntu 18.04 machine I found the default netplan configuration in /etc/netplan/50-cloud-init.yaml: network: ethernets: eno1: addresses: [] dhcp4: true ...
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160 views

18.04, Ethernet, Activation of network connection failed

I'm trying to setup a 18.04 desktop with Win Server 2008 (Hyper-V) on a HPE(HP server). And, this message appear every few seconds, after logging in with fresh and clean install (minimum install). ...
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1answer
55 views

My wifi adapter is not detected by ubuntu 18

When I previously used Ubuntu 16 before getting Ubuntu 18 I had the issue of the computer not detecting my home wifi network. Upgrading to Ubuntu 18 didn't solve my problem. When I check the wifi ...
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0answers
17 views

Cannot connect to internet with new Ubuntu installation on Dell Optiplex 790

I have just installed Ubuntu 18.04 LTS using a bootable USB image. The OS does not recognise an ethernet cable plugged into the system and there is no wifi card so I have no access to the internet. ...
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0answers
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How can I connect my ps2 to wifi by bridging through ethernet using my ubuntu laptop

So I recently got a network for my old ps2 I had lying around after hearing how socom 2 still has a pretty big following using ether xlink kai or a secondary dns address. My house unfourtonately has ...
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2answers
157 views

No internet connection after updating Ubuntu 16.04 LTS

I updated my system a few days ago and cannot access to internet anymore using my Ethernet cable (nor with wifi, but it never worked). I have Windows on the same computer, which still recognizes the ...
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2answers
55 views

How to connect to server with dynamic IP address over VPN

I have a server set up with a static IP address over a wired interface (eno1). I can ssh into the server remotely through the static IP, but the connection is poor, possibly due to incompatibility ...
0
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1answer
83 views

network interfaces not running

I am trying to get my LAN port up and running. The available interfaces on my system are : user@user-NUC7i5BNH:~$ cat /etc/udev/rules.d/70-persistent-net.rules # This file was automatically ...
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0answers
46 views

Ethernet Connection Not Detected

Problem Ethernet port is not detected. No eth0 or anything similar in ifconfig. Currently, I can gain access to the internet via a USB WiFi dongle but this is just temporary I need a ethernet ...
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0answers
43 views

Route traffic between two interfaces using NetPlan

I have an Ubuntu Laptop that has an ethernet interface and a wireless interface. The Ethernet interface is connected to the corporate network while the wireless network is open. All the machines/...
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1answer
50 views

How to assign static IP address to a device which is connected to ethernet port using USB-C adapter

I have bought the new Dell XPS laptop 2018. The problem with this laptop is that it has only USB-C ports. It does not even have the ethernet port. I bought a USB-C to ethernet adapter cable. I am ...
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0answers
39 views

How do I share a connection with Ethernet?

I am having a problem sharing an internet connection from my ubuntu laptop to my ubuntu server. The laptop is the latest version of Lubuntu (Desktop) as of the day this post was posted. - interface -...
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0answers
272 views

Ethernet not showing on ubuntu 18.04

I switched from windows 10 to ubuntu on my laptop(hp 15-bw085nd) and I don't have an ethernet connection or a wifi connection. When I use ifconfig -a it only shows my loopback. Maybe it has something ...
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0answers
27 views

I need help fixing an unclaimed ethernet controller

I'm new to ubuntu. I have ubuntu 18.04 It has been fun so far, but I have no internet. I used sudo lshw -c network and it says I have a Realtek rtl8111/8168/8411 pci express gigabit ethernet ...
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0answers
22 views

Ubuntu Server 16.04 LTS - NIC interfaces file not working properly -(also dual NICs & static IPS)

This used to be something I could do in a couple of minutes in my sleep but during the last couple of years many distros have changed the way they set up networking. I'm not sure why it's turned into ...
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0answers
33 views

ping to alias IP failes

I'm using Ubuntu 16.04.4 on lenovo yoga 900. I have a tp-link ethernet adapter. I configured the network (/etc/network/interfaces) with 2 fixed IPs as follows: auto lo iface lo inet loopback auto ...
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0answers
27 views

Ethernet won't connect. Is it the system port?

I have a working WiFi connection, but wanted to go wired with Ethernet. I bought a new router (Netgear CM400), but in both Windows and Ubuntu 16.04, it says that the new cable is disconnected when it ...
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1answer
251 views

Wired Ethernet not working Ubuntu 18.04

Upon bootup the network connection appears to be connected, for several reboots, I was shortly able to ping 8.8.8.8. However, I'm not longer able to do this. Then after logging in (<30 seconds) the ...
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Infiniband adapter only works when Ethernet disabled, also only pings from 1 side

I have Ubuntu Server 18.04 running on a machine, and have a Mellanox Infinihost III single port DDR adapter plugged in. This same adapter was used on a Windows machine before so I know it works. I ...
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1answer
50 views

Pages loading too long on new router (Ubuntu 18.04)

I have replaced my router with a new one. Internet speed is the same, but I have problem that certain pages load for too long. Google searches appear instantly, for example, but Youtube and Facebook ...
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61 views

Internet stops working automatically even if status says Ethernet is connected

This has been happening for few hours. One of the Ubuntu servers is losing internet connectivity suddenly every ~15 minutes. The network manager shows that the cable is connected correctly. All the ...