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

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15.04 vivid vervet intermittent selective network outages

I recently upgraded from 14.10 to 15.04 and immediately after the upgrade was finished, I began having network problems. At first I thought the errors were related to my squid3 cache, but I have ruled ...
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Ethernet and wifi not working in newly installed Ubuntu 14.04.2 on HP mini 1000

I tried various options available on different webpages but nothing helped me. like running command like 'lsusb' Images of various command I executed are available at Google image
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14.04LTS - Very Slow Ethernet Connection

Note that my system is not wireless. My motherboard is Asrock Z77 Extreme4, which uses BCM57781 Driver from Broadcom. It's my first day of using UBuntu, and it's been bugging me how the download ...
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20 views

Why do I get IP 10.42.0.1 when plugging in an Ethernet cable?

For a few months I have the problem on my Ubuntu 14.04 box that when I plug in my Ethernet cable into, I get the IP 10.42.0.1 assigned instead of getting an IP via DHCP. I can fix this problem ...
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1answer
41 views

can't access internet via ethernet, but i can via WiFi

what happens is my laptop connects to the router via lan cable but I can't access internet. while on my other laptop I can. Thought it was a lan cable issue, so replaced it. Still the same problem ...
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1answer
21 views

Cannot connect to wired connection after clean install (both 14.02 LTS and 15.04)

I just built a new PC and successfully installed Ubuntu without any errors. However, I cannot seem to connect to a wired ethernet cable. The ethernet works, because I can plug it into a different ...
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1answer
15 views

Configure two ipaddress from same subnet using 2 Bridged adaptor VirtualBox

I have configured 2 interface with 2 Bridged adaptors in Virtual Box from same subnet, the /etc/network/interfaces file configuration for two bridge network is shown below. auto eth0 iface eth0 inet ...
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13 views

USB Mobile internet and ethernet not recognized on Ubuntu 14.04

I'm having problem with recognizing ethernet and Mobile internet. I am able to connect to wifi, but Ubuntu 14.04 doesen't recognize ethernet and Mobile. My ethernet cable is pluged in, and so is my ...
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52 views

Ethernet Connection Not Work (Xubuntu 15.04)

I've been looking around and trying the answers in other places, but none of them have worked so far. I have an ethernet connection on an old laptop. I'm using Xubuntu 15.04. This ethernet connection ...
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132 views

Wireless, Ethernet and Bluethooth not working with lenovo G5080 under Ubuntu 12.04.5/14.04 64bit

I have Lenovo G50-80 laptop and installed Ubuntu 12.04.05 or 14.04 for 64 bit. But I can't establish a wireless connection or a ethernet connection. $ lspci -nnk | grep -iA2 net 02:00.0 Ethernet ...
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52 views

DSL problem in ubuntu 15.04

Network is not connecting, I get the error message (1) Creating object for path '/org/freedesktop/NetworkManager/ActivationConnection/4' failed in libnm-glib.
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15 views

Ubuntu14.04.02 x64 wired-connection keeps disconnecting

The wired-connection keeps disconnecting but the wireless doesn't have any problem. I tried reboot create new connection apt-get update/upgrade But the problem hasn't been solved at all. Now I ...
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5k views

Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E

I had Ubuntu 11.10 and in the last few weeks I experienced an obscure problem: after I had the computer running for a few days I could no longer connect to google.com or anything related to google. ...
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1answer
28 views

Eth0 lost when ethernet is using crossed cable

I am using Ubuntu 12.04 and I made changes on Interfaces file to change the IP of my touch computer. After reboot everything works well if I am connected with normal Ethernet cable to a Hub or router, ...
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6 views

Ubuntu 14.04.2 32 bit desktop version Ethernet is not working

installed Ubuntu 14.04.2 32 bit desktop version Ethernet is not working using first time Ubuntu no wifi hardware in desktop system
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4answers
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OpenVPN: The VPN connection to … because of invalid VPN secrets

I am 3 days into using Linux. I set up an OpenVPN connection following the instructions set out by: https://www.goldenfrog.com/support/vyprvpn/vpn-setup/linux/openvpn OpenVPN installation went ...
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1answer
20 views

every time Software Updater installs something new,ethernet adapter goes wrong

After Software Updater installed something,my network didn't work.it seemed that ethernet adapter driver was updated and the new driver didn't work on my computer.so i have to install the old one ...
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RTL8111/8168B Rev 06 Ethernet controller not working with AMD64 Kernels > 2.6

I'm also having trouble with the RTL8111 Ethernet controller. It's not working at all on Ubuntu x64. This is my card: $ lspci -nnk | grep -i net -A2 05:00.0 Ethernet controller [0200]: Realtek ...
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1answer
93 views

Wired ethernet no traffic count

My 1000MBit Ethernet doesn't show any traffic count anymore since reinstalling with 14.04. With 12.10 everything was fine. Neither in ifconfig nor gnome-system-monitor shows any traffic. But the ...
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10 views

Wired connection and Driver install was automatic on Live USB, after install it won't even recognize cable is plugged in

When I first tried the Live 12.04 it automatically found the drivers necessary for my wireless to connect , and when I plugged my ethernet cable in it immediately read it and connected to my ...
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2answers
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Ethernet not working (neither even detected) on Ubuntu 12.04

Ethernet is not being detected on my computer running Ubuntu 12.04 with LAMP. The last thing I remember doing is following this tutorial: ...
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19 views

Why does my eth0 interface always shows the same inet addr in different LAN

Problem in my Ubuntu 14.04 is eth0 interface always shows the same inet address regardless of network in which I am and the name of the interface has also changed from eth0 to eth1 due to some unknown ...
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17 views

You are offline now, erthernet problem!

I restated the service nework manager etc but with no succes.Leds are working fine on adaptor. dimitris@dimitris-G31M-ES2L:~$ sudo service network-manager restart network-manager stop/waiting ...
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18 views

Unable to find ethernet network

There is no option to connect to an ethernet network . When I open System Settings > Network > Wired and click options it responds Error editing connection Unable to find a connection with UUID ...
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61 views

Can't get ethernet connection to work with 'Intel Corporation 82579LM Gigabit Network Connection (rev 04)' on Ubuntu 15.04

I am trying to get ethernet connection to work on a hp compaq 8200 elite sff computer, but with no success so far. When i plug in an ethernet cable, the network icon starts the searching animation, ...
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3k views

How to troubleshoot ethernet port on laptop

I have a problem with my wired connection. To be more specific, my laptop doesn't seems to recognize that I have plugged in an ethernet cable. I tried to download new drivers for my ethernet card, ...
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31 views

New Internet Connection in Ubuntu 14.04

My ISP provided me the Ethernet Cable only and no router and configured the new network connection in Windows using username, password and service name (using dialup). How to setup this connection in ...
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2answers
6k views

Cannot connect to ethernet with wired connection Ubuntu 12.10

I am new to Ubuntu (installed Ubuntu 12.10 desktop on my Mac Mini today from Ubuntu iso – mac mini had blank SSD on it i.e. no OS X at all). First drama is that Ubuntu installer seems to be setup for ...
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2answers
70 views

OSSEC HIDS reports “Interface entered in promiscuous(sniffing) mode”

I have installed the latest version of OSSEC HIDS (2.8.1), and I keep now getting these email notifications from it: OSSEC HIDS Notification. 2015 Apr 08 11:26:17 Received From: ...
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14 views

Manually Shift from a Wireless Connection to Wired Connection on a Desktop Computer

I have a desktop computer using Ubuntu 14.04 where the wired network card appears to be getting flaky. Occasionally, even-though there is no wireless Ethernet card in the desktop computer, the ...
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2answers
4k views

How to get Wifi working on Ubuntu 14.04 (Macbook Pro Retina 15 inch - 2014)

I just downloaded Ubuntu 14.04 on my Macbook Pro Retina 15 inch 2014 version using usb. My problem is I can't get the Wifi working. No wifi connections would display on the wifi menu. I've tried ...
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2answers
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Ubuntu 14.04 Network Problem

I have an issue with my Ubuntu 14.04. I am able to connect to wireless networks without any problems, but when I am in my Dorm Room, I cannot connect to my wired Internet connection. It works fine ...
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add additional ip in ubuntu 14.04

vi /etc/sysconfig/network-scripts/ifcfg-eth1 DEVICE="eth1" HWADDR="FA:16:XX:XX:XX:XX" BOOTPROTO="static" NM_CONTROLLED="no" ONBOOT="yes" TYPE="Ethernet" IPADDR="157.0.0.101" ...
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1answer
53k views

Share wireless Internet connection through ethernet

I want to share the wireless Internet connection on my desktop with my old laptop, through ethernet. I have ticked the option "Make available to others" on both connections, on my desktop, but my ...
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16 views

Open NAT with ICS

I've been trying for days to achieve an open NAT with ICS ubuntu 14, It is open when I use windows 8 to bridge but I wish to move over to ubuntu but this is stopping me connecting to friends online ...
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Ubuntu does not detect onboard Ethernet

I have just replaced my old broken motherboard with a new one. I did not format my HD because Ubuntu 15.04 just started as I hoped. The first time I booted my OS, internet was going great so Ethernet ...
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19 views

Ubuntu 14.04.2 LTS Ethernet connection doesn't work until reboot

Everytime I start from computer off, it shows that my Ethernet connection is working, however, it doesn't work until a reboot. After that, it works well. Does anyone have an answer for this problem?
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29 views

How can I route between different network using multiple ethernet card?

I have two ethernet card in the PC, eth0 is connected to the local network(192.168.0.0/24), and the other is connected to the internet. I can reach all the devices which are connected to this ...
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Trying to install NVIDIA Corporation MCP61 Ethernet Ubuntu 13.04

I've just uninstalled Windows 7 from my pc and installed a fresh copy of Ubuntu 13.04 on my desktop. Everything has gone well except for one very important thing, namely the network card. My network ...
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1answer
23 views

Dual OS, Xubuntu works, Windows 7 no internet, and black screen

I'm having a similar problem. I bought my Lenovo ThinkPad L450 without any OS installed. I first installed just Xubuntu without any trouble, all was working well including no trouble connecting to ...
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2answers
37 views

usb ethernet cable

Does anyone know how to connect a ubuntu laptop to the internet via USB and ethernet? I tried to connect my Sony vaio laptop to the internet via an ordinary USB-ethernet-cable but it turns out I (and ...
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23 views

Ubuntu 14.04 Two Ethernet Connection Not Working Together

I am having issue of connecting two Ethernet connection at once on Ubuntu 14.04. It allows only one connection at a time. Even if I just only connect cable and not add any Ethernet settings to the ...
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1answer
8k views

Configure second network card/interface

i'm configuring one server (ubuntu 12.04 64bits, with kvm) with 2 card adapters. The first one (eth0) is configured to work with virtual bridge (vbr0) for the DMZ interface. Ho can i condigure the ...
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0answers
169 views

Cannot connect DSL after upgrade from 14.10 to 15.04

After upgrade Ubuntu I cannot connect to DSL. I have system message: (1) *Creating object for path '/org/freedesktop/NetworkManager/ActiveConnection/9' failed in libnm-glib.* What is it? I have got ...
2
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1answer
39 views

Problem with Ethernet connection on PC, integrated network card (Ubuntu 14.04)

In the network manager : unplugged cable (but cable allright), I dissconect and connect - dont solve the problem. If lspci -nnk | grep -iA2 net - I have this: Ethernet controller [0200]: Realtek ...
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1answer
40 views

Can't Connect to Internet After Upgrading from 12.04 to 14.04

I recently upgraded from 12.04 to 14.04, and unfortunately afterwards I couldn't connect to the internet, either via ethernet or wifi. It could detect the cable and wifi networks, but it just couldn't ...
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2answers
63 views

Connect Windows 8.1 to Ubuntu 14.04 using crossover cable

I have a Windows 8.1 and Ubuntu14.04 LTS Computers. I want to connect them to each other using Crossover cable so that I could Transfer files from Ubuntu to windows and back. Can anyone tell me how to ...
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1answer
33 views

Ethernet port not working

I'm running 15.04. WiFi is working fine, ethernet not working at all. Have run sudo lshw -C network and this is my output: *-network UNCLAIMED description: Ethernet controller product: ...
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1answer
534 views

ethernet controller not working on new dell vostro 2520 laptop

I am very new to ubuntu. just today I when i tried to plug in my lan cable it was showing nothing . the result of sudo lshw -C network showing Ethernet Controller under *-network unclaimed. In ...
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59 views

Ethernet Network is disabled in 14.04LTS

When I first used Ubuntu 14.04LTS, I could use the ethernet network option in the network menubar to connect with lan, use the ftp server or browse another pc to share anything. I just need to connect ...