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

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13
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5answers
23k views

What is the active MAC Address of my computer?

While looking to find the MAC Address of my computer as it appears to a wireless network, it was recommended that I run ifconfig. Having executed that command in the Terminal, I noticed that, unlike ...
0
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1answer
902 views

Ethernet not working 10.04

I am facing a strange issue. Yesterday, I powered off my Ubuntu 10.04 LTS server by mistake. Since then networking is not working. The interface which was in use was configured as eth1 but now it ...
2
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0answers
530 views

No internet connection with an Atheros AR8121/AR8113/AR8114 adapter

I have Ubuntu on my netbook. It wont connect to the internet, I did a system check and I have a Attansic Technology corp. Atheros AR8121/AR8113/AR 8114 PCI-E, ethernet controller (revb0). I'm not ...
0
votes
1answer
2k views

Ethernet Connection Doesn't work

Not sure what happened over the weekend (possibly the last sudo apt-get upgrade I ran this morning?), but I noticed that my computer's using my phone's internet connection (connected via USB and ...
0
votes
1answer
1k views

Cannot Get Gigabit Connection with BCM57780 and tg3.ko

I've got a Broadcom BCM57780 NetLink ethernet adapter in a laptop and I cannot get it to achieve a 1000MBps connection. I have already verified that the cables are good -- other systems work fine ...
2
votes
1answer
273 views

Getting Ethernet driver to crippled machine

The reply at How do I install drivers for the Atheros AR8161 Ethernet controller? probably helps me. I have a Toshiba S855, bought yesterday. lspci -vv | grep Atheros command from the terminal shows ...
0
votes
1answer
2k views

Ethernet and WIFI not working

I recently dual installed Linux next to Windows 7. Everything worked fine for the first couple days. Then I decided to upgrade from 11.10 to 12.04. I think the installation got hung up at the end ...
2
votes
1answer
737 views

My server does not forward packets between interfaces. What am I missing? [closed]

I'd like to get my Ubuntu 11.04 server to route packet between its two network interfaces. The two ethernet interfaces (eth0, eth1) work apparently well as such. Both have static IP addresses ...
1
vote
1answer
1k views

How can I edit a .conf file owned by root?

I'm trying to create an exception file to disable my ethernet as I think it's responsible for my 350s+ boot times, please see section of dmasg below :- [ 3.750961] sd 6:0:0:0: [sdb] Attached SCSI ...
1
vote
2answers
3k views

Ethernet not working on a Dell Inspiron 14z

When I plug in a network cable, it is not recognized. The WI-FI is working properly, though. ifconfig output: lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 ...
0
votes
1answer
3k views

network disabled

I have just installed ubuntu server edition in order to create a home network. But I am not able to find IP of the machine through ifconfig (showing only localhost). Then I tried lspci | grep -i ...
3
votes
2answers
525 views

Which one consume less battery in Ubuntu (generally Linux) Ethernet cable or Wireless?

I am wondering when i want to connect to network, it is better use my wireless adapter or using cable (ethernet adapter), Which one consume less battery? Sometimes i saw that my battery life was more ...
2
votes
1answer
91 views

I can't connect to any network

When I plug in the ethernet, 'connection 1' shows under connections, and when I click it, it tries to connect for a while then says 'connection 1: Disconnected'. My best guess is that I need to ...
3
votes
0answers
923 views

Dell Vostro 1510 can't connect using wired connection

I recently dual-booted my system with Windows 7 and 12.04. I can't access Internet through wired connection, in spite of LAN cable in the socket. It says network cable unplugged, but I can access ...
0
votes
1answer
2k views

How can I install a driver for an Intel 82573 Gigabit ethernet card?

I recently installed Ubuntu 12.04 on my computer, The only problem so far is there is no Internet connection. I believe that's due to missing drivers which are difficult to install without Internet. ...
2
votes
1answer
840 views

Ubuntu 12.04 - e1000e slow performance

I'm running Ubuntu 12.04 on a Thinkpad W510. lspci reports this ethernet controller 00:19.0 Ethernet controller: Intel Corporation 82577LM Gigabit Network Connection (rev 06) By default the ...
1
vote
1answer
4k views

Wifi and Ethernet connectivity problems after upgrading to 12.04

I upgraded recently to ubuntu 12.04 from 11.10, and since then I haven't been able to connect to Internet, neither using wifi, nor using ethernet. I've been reading many posts, but not finding a ...
2
votes
1answer
1k views

12.04 drops Wired Network if Wireless connects

This is a little different then most of the questions I have seen here. When I am at my office I keep my Lenovo Thinkpad t61p running Ubuntu 12.04 x64 connected via wired Ethernet. I also typically ...
0
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3answers
8k views

wired connection not working in ubuntu 12.04 on lenovo G580 laptop

I found solution in http://www.zyxware.com/articles/2680/solved-wired-connection-eth0-not-detected-in-ubuntu-12-04 I downloaded compact-wireless-2012-07-03-p.tar.bz2 Here the steps i followed along ...
1
vote
2answers
6k views

Problem connecting to wirless internet - computer will not boot with networking unless ethernet cable is connected

Ubuntu server 12.04, fully updated, with lxde installed... I have a problem with my wireless connection and don't know how to solve it. I can't get any networking at all unless I plug the ethernet ...
1
vote
2answers
5k views

USB ethernet registered but not working

I have a Cisco USB ethernet device plugged in to my 12.04lts. It shows up in lsusb as ASIX Electronics Corp. AX88772 and dmesg notes it: asix 5-1:1.0: eth1: register 'asix' at usb-000:06:00.0-1 ASIX ...
0
votes
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. ...
0
votes
1answer
285 views

Network Card not initializing before startup programs.

I am using Ubuntu 12.4. I am using this machine to display a webpage. I have installed the MKISOK plug in for Fire Fox and set Fire Fox to open on start up. The issue I am running into is it seems ...
1
vote
1answer
2k views

USB FastE or GigE that “just works” with Linux 2.6 kernels

I am trying to find a USB FastEthernet or GigabitEthernet that works without recompiling Debian Squeeze or Ubuntu Oneric. So far, I have tried the following USB GigE adapters: Belkin F4U047-RS ...
1
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1answer
7k views

Realtek RTL8111/8168B PCI Express Gigabit Rev03 - keep losing driver/no link -WIRED

I'm using Mint 10 with 2.6.35-32-generic The PC has two Wired Ethernet cards. They're both the same. One is built into the motherboard, the other is a PCI-E card. I'm using the built in one, but ...
0
votes
1answer
615 views

How do I deactivate At1lc driver after install of Alx driver? (replacement)

I have had a problem with no wired Internet connection in 12.04 and my Atheros 8151 Ethernet card and I followed the procedure to replace the non-working driver (At1lc) with it's replacement the Alx. ...
1
vote
1answer
234 views

How to know which network is connected?

How can I see using command-line whether I am connected to network using eth0, eth1 or wln0 etc? Well, to elaborate, I have a desktop sidebar which I installed using program "conky". This sidebar has ...
27
votes
2answers
106k views

How do I install drivers for the Atheros AR8161 Ethernet controller?

I have installed Ubuntu 12.04-64 bit on my Lenovo IdeaPad laptop, and the wired Ethernet (LAN) connection doesn't work. Running the lspci -vv | grep Atheros command from the terminal shows me I have ...
0
votes
1answer
7k views

How to install Network Adapter Drivers for Atheros AR8161/8165 PCI-E Gigabit Ethernet Controller (NDIS 6.20) Ubuntu 12.04 [duplicate]

How can I install drivers for 64-bit Atheros AR8161/8165 PCI-E Gigabit Ethernet Controller (NDIS 6.20) for Ubuntu 12.04. I dual boot Windows7/Ubuntu 12.04 drivers work for 64-bit Windows 7. lspic ...
0
votes
1answer
1k views

Ethernet connection stopped working

I walked away from my computer for a few hours, restarted for some updates and afterwards the ethernet connection was no longer working.
1
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2answers
81 views

Is network configuration necessary for ethernet?

I am trying to connect my Ubuntu system to the internet using Ethernet cables. Do I need to change any settings from the defaults? Thanks.
9
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4answers
39k views

Wired connection not working Ubuntu 12.04

My connection was fine until now, but my wired connection is not working in Ubuntu 12.04. I have installed Ubuntu 12.04 along side Windows 7 partition and the connection works on Windows but not on ...
1
vote
2answers
599 views

Why does Ubuntu really slow down the rest of my home network?

I have a Ubuntu desktop and a Windows 7 desktop. The Windows 7 machine is connected via wireless adapter and the Ubuntu desktop is connected via Ethernet. The wireless adapter is capable of 300Mbps ...
1
vote
2answers
544 views

**Wired** network disconnects when laptop unplugged

I am using Xubuntu 12.04 with Network Manager on my HP 5310m Laptop and get a weird problem on wired network. When googling for answers, I found many people get the problem that wireless disconnects ...
4
votes
0answers
7k views

12.04 does not detect eth0(Atheros AR8162 ) [duplicate]

Possible Duplicate: How do I get an Atheros AR8162 working? Installed 12.04 on dell inspiron 5420. WiFi is working however wired connection does not work. In fact I can't see eth0. Can I ...
0
votes
2answers
1k views

After upgrading from 11.10 to 12.04 I don't have ethernet connection, how to solve it?

I had a wired network connection that worked fine in Ubuntu 11.10. I upgraded to 12.04 and immediately after the upgrade was completed, the OS reported my cable unplugged. It was not unplugged and ...
2
votes
1answer
487 views

Trouble communicating with router DHCP?

my home network is has problems regarding linux computers, two ubuntu and two mint. I have had a look at the log files and searched the internet regarding the solution. I cannot find a whisker of a ...
0
votes
1answer
434 views

Ethernet cable isn't being detected in Ubuntu 12.04

I installed Ubuntu 12.04 smoothly. but for updation etc when I want to connect with my wired cable internet connection, find that all are same like the previous version and I put all ip address, dns ...
0
votes
1answer
945 views

Need to install ethernet firmware for Dell PowerEdge 2650 integrated BCM5703 NIC

I have a Dell Poweredge 2650 and I'm trying to install the ethernet firmware/driver. I found this page but I can't figure out how to install it. Their isn't a loader.conf and I would like to avoid ...
4
votes
2answers
5k views

Disable Ethernet permanently to speed up boot time

I do not use the wired Ethernet Card. It seems to me that, Ubuntu is always trying in boot time to check the network via eth0, Which consumes some times and I guess this may slow down the boot process ...
2
votes
0answers
2k views

decreasing boot time on Ubuntu 12.04

I know it is just a luxury problem. But I would like to decrease the boot time of Ubuntu 12.04. Before it started up within 60 seconds, after tweaking a bit I keep it now constantly around 37 seconds. ...
14
votes
6answers
12k views

Why is my Internet connection randomly dropping?

Ever since I have installed 12.04 (clean install not an upgrade), I have been having a drop in the Internet connection. The drop in the connection can be anything from 15 seconds to about 3 mins, and ...
4
votes
1answer
4k views

My hardware MAC address is always 00:00:00:00:00:00 until I manually update 'eth0'. How can I fix this? [duplicate]

I am using Ubuntu 12.04. I use a wired connection. My network MAC address shows as 00:00:00:00:00:00. When I enter the commands below into a terminal window, it starts working again. sudo ifconfig ...
0
votes
1answer
2k views

How to autoconnect to Ethernet network when restarting?

Firstly, I hope this hasn't been covered elsewhere, I have searched but haven't found this particular problem. I updated to 12.04 a while back and though I now thoroughly regret that decision, I'm ...
5
votes
2answers
2k views

How to block Internet for guest account?

How can I block or disable my Ethernet Internet connection, for the guest account only?
3
votes
1answer
5k views

Ubuntu 12.04 wired ethernet not working and wireless not working, How do I fix it? [closed]

I am new to ubuntu. I recently installed the latest ubuntu for desktop from http://www.ubuntu.com/download. I was very excited to start using ubuntu until I booted the computer and saw that i couldn't ...
3
votes
2answers
5k views

How can I automate a root command after (not during) startup?

I'm using Ubuntu 12.04 LTS, but I need to run the following command: sudo dhclient after startup to acquire a stable ethernet connection. I am running dhclient during startup already, through the ...
0
votes
2answers
4k views

Ethernet connection for Realtek RTL8139/810x not working

I installed ubuntu recently and i cant connect to internet.... I never deal with linux before much but i cant connect to internet and it keeps giving notification wired connection disconnected Its ...
0
votes
1answer
544 views

How can i learn ethernet device buffer size on ubuntu 11.10

i wonder if i can learn ethernet buffer size.Almost all of us visit youtube or other video sites and if our connection limit is lower (i live in Turkey and fast internet is really )so when i want to ...
0
votes
3answers
3k views

Wired Network (eth0) disappears on a Lenovo Z570

I upgraded from Ubuntu 11.10 to 12.04 yesterday. I am running a BSNL Broadband DSL conenction. The wired network suddenly dissapears and the computer stops detecting the ethernet card after sometime. ...