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

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Intermittent wired network issues in 14.04

Since yesterday, my wired network connection has been dropping for a couple of seconds every 30 seconds or so. To my knowledge, I had not made any changes to my network. Output of ifconfig -a: ➜ ~ ...
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Ethernet not being detected in ubuntu14.04

I have DELL inspiron 15R laptop with dual boot windows8.1 and ubuntu14.04 LTS . My ethernet is workinh properly in Win8.1 but when i connect it in Ubuntu, it shows auto-ethernet and nothing happens ...
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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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2answers
365 views

No internet via wifi/ethernet after 14.04 upgrade

I have just updated to Ubuntu 14.04 LTS on my laptop, and I seem to be having some internet problems. I have no internet connection through wifi or Ethernet, after both working in the previous ...
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1answer
78 views

Network & WiFi problem not working on lenovo G50-70

This is my first use of Ubuntu. I installed ubuntu 14.4 but the WiFi is not working. I don't understand how to activate them. What should I do? lspci -knn | grep Net -A2 && rfkill list: ...
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Random USB ports turned off and ethernet not working

Bear with me, there's a lot to get through. I built a computer with the intention of writing android software as a project. Initially I installed Ubuntu and I couldn't, for the life of me, get the ...
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24 views

15.04 WiFi&Wired fail w v2.19 kernels; work on 15.04 w v.2.16 kernel from 14.10. Toshiba NB15t-A

Neither WiFi nor Wired will connect on 15.04 w v2.19 kernels (or v. 3 from kernel.org) but work with 14.10's v.2.16 kernels on Toshiba Satellite NB15t-A. Title says it all. Neither will connect, ...
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15 views

Sharing wired internet connection via router

I'm trying to set up a desktop which is running Ubuntu 14.04 to share existing ethernet connection to a router. The existing ethernet connection is an onboard connection and the output ethernet will ...
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2answers
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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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2answers
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Network manager applet doesn't show wired network connection

I have the latest installs of network-manager and network-manager-gnome. I installed Ubuntu Server LTS 14.04, then installed Cinnamon on top of that. I have LAN network connection (can browse, etc.). ...
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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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Ubuntu Print via LAN using USB 2 to Fast Ethernet box to USB printer

Ubuntu 14.04 Printer HP OFFICEJET K7100 (wide format) USBNETBOX1 by KONIG, based on ASIX AX88772 chipset Installed HPLIP-3.14.10 version was installed on 19-01-2015 - Ran test print connecting my ...
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1answer
26 views

Remove network interface permanently

I'm trying to remove a network interface permanently. For some reason, ifconfig lists eth0 and eth1, although the latter RX/TX metrics remain at zero. I suspect that extra eth1 entry might be causing ...
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2answers
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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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2answers
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How does the system admin gets the ethernet address of computers in the network?

I am very new to system administration. Have a doubt, how does the system admin gets the Ethernet address information of the computers in the network. Actually my doubt is how does he determine the ...
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29 views

ethernet shows connection but cant connect to internet [closed]

My system: ubuntu 14.04 LTS dual boot with WIN 8 motherboard: msi z97s I followed these instructions: How to setup a wired network in the IPv4 network settings? ...
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2answers
207 views

Ethernet Connection randomly disconnects after transmit queue 0 timed out

Description of problem: Ethernet connection gets disconnected at random apparently without any reason. I have tried the following command to restart my ethernet connection, sudo service ...
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1answer
888 views

Ubuntu 15.04 after reboot lost Ethernet connection

I've installed Ubuntu 15.04 and after a reboot I lose my Ethernet connection. After I've disable and re-enabled my connection Ethernet works fine, until I reboot again. This has been going on ever ...
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Ethernet is getting slow after few seconds in Ubuntu 14.04

I am using Ubuntu 14.04. The Ethernet net is keep getting slow after few second of plug the wire. I could not browse anything. When I replug the wire it starts and after few seconds again slow down. ...
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2answers
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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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39 views

How can I confirm my network is compromised and stop the abuse?

In the last few months I have seen and recorded strange activities on one laptop running Windows 7 and another running Windows 8.1 Pro. The activities ranged from both laptops connected to Ethernet ...
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2answers
113 views

ALX on AR8191 does not appear to be working 15.04

I am trying to use the ethernet port on my Lenovo y580, which previously worked untill I upgraded to ubuntu 15.04 from 14.10. My hardware is recognized, and I can connect to an ethernet network, ...
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changing ethernet drivers acer aspire one D250 ubuntu mate 14.04

I was wondering if someone can help me out, I'm trying to help my mom fix her laptop, she has an acer aspire one D250, her wired internet connection stopped working suddenly, I think i have it ...
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1answer
27 views

ifconfig sets wrong broadcast until ran again

This issue is very confusing for me. ifconfig sets a different broadcast address then specified, until I run the same command again. I'm trying to change the eth0 interface: inet addr:172.23.5.1 ...
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1answer
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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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How to use DSL connection and ethernet Network concurrently

In my university, we use a dial up network for internet. Apart from that we are also connected with Ethernet network. By this we can access shared folders of other friends. But In windows we did it ...
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How do I add an additional IPv6 address to /etc/network/interfaces?

this question How do I add an additional IP address to /etc/network/interfaces? mostly asks what i want except that i want to add more IPv6 addresses in the same interface eth0 without incrementing to ...
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1answer
3k views

How to make ip Address static (eth0)

I'm having a really hard time configuring ubuntu 13.04 to have a static ip address. I have tried multiple solutions but everytime I reboot (can't do the network reset command because ubuntu freezes) I ...
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26 views

LAN is not working, Showing “Cable Unplugged”

I am using Lenovo B490 laptop and everything was fine. Few days back My friend used my laptop in my absence and after that I am not able to connect internet through the LAN port. It is showing that ...
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2answers
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Ethernet connection not working in ubuntu 14.04.1 LTS

I am facing weird issue with my ethernet connection. Its showing connected but when I hit something in the browser it won't though its connecting via wifi to other networks but not with the wired ...
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30 views

Internet works only after Rebooting or Reconnecting

I recently installed Ubuntu 14.04 on my Dell Inspiron laptop. Initially, the Wi-Fi didn't work. But it started working after I did some update using the Ethernet. But I noticed some problems after ...
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135 views

Wifi and ethernet networking stopped working in ubuntu 14.04

I have a System76 Kudu Professional version kudp1, it came with ubuntu 13.10 but I upgraded it to 14.04. After the last upgrade I did it stopped detecting ethernet and wifi networks. nm-tool output: ...
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148 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 ...
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50 views

VirtualBox - no eth0 or wlan0 connection (Ubuntu / CentOS)

I checked all possible places in order to solve this issue and only decided to post a question here because I'm at the verge of giving up. So, I recently installed VirtualBox 4.3.26 on my Ubuntu ...
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2answers
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How to install (or troubleshoot) a USB 3.0 AX88179 Gigabit Ethernet adapter?

I have a USB 3.0 AX88179 based Gigabit Ethernet adapter and after searching online, I found many people reporting success with this device under Linux. The driver entered the mainline kernel on ...
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1answer
26 views

How to make virtual interface ping to a host in the network

I created a virtual interface as indicated in this Unix.SE post. I.e. sudo modprobe dummy sudo ip link set name eth10 dev dummy0 sudo ifconfig eth10 up sudo ifconfig eth10 192.168.1.150 I want to ...
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65 views

No ethernet connection only wifi

I'm providing some of the terminal tests I done for a Dell latitude D520 with Ubuntu 12.04. Please any help will be appreciated. PCI: lspci 02:00.0 Ethernet controller: Broadcom Corporation ...
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1answer
78 views

KVM Bridging - Network connection fails if I change Device model to VirtIO from rtl8139

I'm setting up my first VM and am using bridging to access my network. It's a Windows7 VM on Ubuntu 14.10. I read that changing to 'Device Model = VirtIO' in the definition of the VM will improve ...
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Wired connection of Qualcom card not working, can't compile drivers

I am using ubuntu 14.10 and I can't get my wirdec connection to work: srd@ubuntu:~/Downloads$ ifconfig lo Link encap:Local Loopback inet addr:127.0.0.1 ...
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1answer
38 views

Ubuntu 14.04 ethernet connection using graphical network manager

I am trying to connect Ubuntu 14.04 to the internet with an ethernet cable. I have turned wireless off. The cable works off a Windows laptop that I am using now. When I plug in the cable 'wired ...
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2answers
305 views

Ethernet connection not working after installing Ubuntu 14.04 LTS

EDIT: PROBLEM IS BACK.. I cant figure out a permanent and reliable way around the bug (have managed the bug to go away 2 times) my files keep duplicating themselves with a ~ after their name, so if I ...
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1answer
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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Ethernet not working and wireless is slow

I have a desktop PC that I built that I recently installed Ubuntu 14.04 next to Windows 8.1. It has an Ethernet port on the motherboard (MSI Z97S) and a wireless card in a PCI-Express slot (Asus ...
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131 views

“No network devices available” Ubuntu 14.04

I'm new to the Ubuntu community, so please, give a step-by-step answer if possible. Everything was fine, until my battery became critically low and my computer turned off. After charging and turning ...
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365 views

Share internet from PC to unrooted android smart phone connected via USB cable

I am running Ubuntu 14.04 LTS with Windows 7 Dual boot (both 32 bit) in my desktop. I use cable broadband (Ethernet). I have an unrooted android smart phone running KitKat 4.4.2. This device has a ...
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How do I share my ethernet connection with my Android phone?

How can I share my ethernet-connected Ubuntu 14.10 laptop's Internet connection to my Android phone?
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Can't connect with ethernet. System keeps trying to connect then give up

Recently i did a fresh install of version 14.04 on my desktop. Despite of some problems, everything is working fine. The only thing that i can't get to work is my Ethernet connection. When i try to ...
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Dell C640 No internet with Ubuntu

Installed ubuntu-14.04.2 on Dell C640 for my kid (edubuntu) Problem: No wired connection. No wifi connection. Slitaz linux connects using wired connection. Machine uses: "Agere Wireless Mini-PCI ...
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Ethernet on laptop only works occasionally

The Ethernet connection on my laptop works only occasionally. Wi-Fi on my laptop works, so the problem does not seem to be with the Internet connection. Plugging in the Ethernet cable and turning off ...
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1answer
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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: ...