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

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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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1answer
72 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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23 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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12 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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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
42 views

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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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
56 views

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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17 views

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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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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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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3answers
120 views

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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26 views

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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1answer
42 views

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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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
108 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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206 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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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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1answer
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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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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1answer
884 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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1answer
23 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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287 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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45 views

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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38 views

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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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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126 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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358 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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1answer
77 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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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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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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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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1answer
36 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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33 views

Ubuntu doesn't detect eth0

I use dual-boot Ubuntu 14.04 / Windows 8.1. I formatted Windows, but grub didn't catch Windows. So I used boot-repair and it worked well except one thing... Ubuntu doesn't detect eth0 after I used ...
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1answer
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I managed to completely remove my ethernet card, even from BIOS

The problem is that I can't use my built in ethernet card. BIOS can't see it if I use SMART LAN it runs only "Virtual Cable Test", Windows can't use the card obviously, not even Xubuntu. Here is what ...
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142 views

How to route transmission traffic

Trying to get Transmission to only use my wifi interface (wlan0), while everything else uses ethernet (eth0). I was able to bind Transmission to the wlan0 IP but can't get it to work unless I ...
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Ethernet not working. Says cable unplugged on Ubuntu Gnome 14.10

When I go into the network settings in Ubuntu Gnome 14.10 (Which I heard is now a official flavour of Ubuntu) it usually says it's connected but at 10Mbs which is extremely slow and barely scratches ...
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44 views

Installed Ubuntu 14.04 LTS, Wired and WIreless connections availiable, but no/ limited internet access

Greetings Veteran Ubuntu Users! I've tried to solve the issue on my own for the better part of the weekend, but some help would be most welcomed. I'm also new to Linux based-OS. Onto the issue... ...
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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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52 views

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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44 views

Add an aliased interface eth0:0 to my wireless bridge

So, I have internet access being shared with iptables MASQUERADE to my wlan0 (hostapd). I have my eth0 with dhclient to have internet. I wanted to add eth0:0 to the internal subnet. As soon as I ...
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No internet connection after dual installing Ubuntu 14.04 beside Windows 8.1

I just installed Ubuntu 14.04 along side Windows 7 and I had access to my wifi networks. But since I upgraded to Windows 8.1 and installed Ubuntu 14.04 along side, I can't even connect to my wired ...
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1answer
67 views

How do I connect to the internet using a wireless router at the same time as connecting to a lan using an ethernet connection?

Setup: I have two computers, both with an ethernet and wireless interface. I have router A that is connected to the internet. I have a router B that is not connected to the internet. I would like ...
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New install of 14.04 with wired connection. getting error “Disconnected - you are now offline”

Pretty much the title. Feeling really lost. Output of ifconfig: eth0 Link encap:Ethernet HWaddr 74:d4:35:97:a6:97 inet6 addr: fe80::76d4:35ff:fe97:a697/64 Scope:Link UP ...
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95 views

Connect to internet on Ubuntu 14.10

I recently downloaded Ubuntu 14.10 on my HP Pavilion. I try to connect to internet by wired connection but Ubuntu doesn’t recognize the Ethernet card. When I follow the instructions at: ...
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Recognize ethernet adapter on Ubuntu 14.10

I try to connect to internet on my Laptop HP Pavilion using Ubuntu 14.10, but there is a problem that Ubuntu doesn't recognize the wired connection or the Ethernet adapter: When I type ifconfig, it ...
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Auto Ethernet not seen in Network notifier in Ubuntu 14.10

Even with the network cable connected (HP2000 laptop), I do not seem to be network connected. At the same time, the Wi-Fi is working -though sluggishly. Till a couple of days back, it was the other ...
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USB ethernet not being redetected after unplugging

I have a USB Ethernet adapter for an Ubuntu 14.10 laptop. When I turn on my computer while it's plugged in it gets detected fine and I'm able to access the internet. The thing just works. However ...