Ubuntu Networking :: Network Doesnt Work - Says - Wired Internet Disconnected ?
May 2, 2010
My friend has 2 pcs, one connected to the internet and the other one used to connect (when he had windows installed) to the internet through the first one using internet sharing, now i installed ubuntu on both and the network between them has been created but it wont connect, the internet icons just animates for like a minute then says "wired internet disconnected" in other words it failed to connect.
I'm having network problems and I have no idea how to fix it. At first, my internet connection was suffering on all computers on my network (Mac, Windows and Ubuntu 11,04). So, I disconnected my cable-modem and then reconnected. Nothing.... So, I rebooted my Windows machine and the internet came back on that computer.
I then went to my Ubuntu computer and clicked on "auto eth0" (per the way I interpreted instructions from the internet). The symbol turned from the "two arrows" to what looks like a wireless, looking for a signal. I thought that maybe I should just reboot, as I did with Windows. However, when I did reboot, that same wireless symbol was there, then a message came up saying:
Code: Wired Network: You are now disconnected I can't seem to get my internet connection back on my Ubuntu computer, though it is working on every other computer on my network.
I installed xubunto 10.4 on my pc the other day and every thing was working fine and then the next day my wired network card went down. So I restarted it and it say Wired Network Disconnected. I tried doing sudo ifconfig eht0 up to try and bring the card back online but nothing happens. I also tried reinstalling xubuntu on my computer. Again my internet works then starts freezing up so I restart it and my ethernet card goes down again. I have tried also plugging it into the second ether net port on my computer but that does not seem to work. Also I went into my dhclient-script and went to the bottom to look at my network card stuff.
It reads #Changed from 'ifconfig $interface inet 0 down' - see Debian bug #144666 ifconfig $interface inet 0 exit_with_hooks 2 "$@" fi
I just installed Ubuntu 10.04, complete noob, but I can't connect to the internet. I connect the ethernet cable, select auto ethernet and the icon animates for about 30 seconds. But then I get a notification "Wired network Disconnected - you are now offline".
Don't know what other information I should provide. I tried a few things from different posts like editing the dhcpclient.config but don't really know what I'm doing and none of these worked anyways. I'm not even sure if they were solutions to a similar problem! I'm using the same connection on my Mac OS 10.4.11 (different machine) and I have no problems. Could I use these same settiings in Ubuntu? I don't know what the different fields represent or what I should input in manual settings.
After i install it i lost my internet connection . i got a message " Wired Network " " you work offline ". i use cable ADSL ,.... my Pc information HP Pavilion 6700 running with both Window 7 & Ubuntu 10.10 note... my network connection work correctly on W7.
I am running Ubuntu 10.10 on a brand new laptop, an install done by the company I ordered the notebook from. I have some limited experience with Linux and Ubuntu especially.I know that I'm not connected to a wired network. I haven't so much as plugged in a network cable, but the graphic appears erratically on the right hand side of the screen like I am connecting, then disconnecting. I've tried disabling the eth0 connection altogether, but no dice. I can't figure out how to make it stop.
After upgrading Jaunty to Karmic internet sharing (iptables) stoped working. Nothing in iptables configuration was changed. Computers behind my ubuntu router can ping it, have access to it (apache, samba, etc.). Only internet isnt forwarding. Clients configuration is the same as before upgrade.
I'm stuck after a clean install of FC14 on an old Everex StepNote (Doing this for a friend). I tried Ubuntu on it first (because it's so easy) but had horrible stability issues and terminal commands wouldn't respond - however Ubuntu detected and ran the eth0 port just fine. FC14 detects my ethernet NIC, but it won't work.
Here are my details. lspci outputs this for my NIC: 00:12:0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 7c)
Here is what I have tried so far - with no luck: - I have toggled the networking switch on the laptop and had no luck. - Downloaded Via's VT6102 drivers for Fedora Core, but they don't support kernel 2.6.35.* - Run ifconfig to manually assign an IP address - which it DID take and did route add default gw as well. - Did a ifconfig eth0 down and up as well.
After all that, I still have a "disconnected" wired connection (and yes, I did check the cable - it works just fine in my personal machine.
today i installed ubuntu 10.10 on my hp mini 210 netbook. previously i had ubuntu netbook remix running and had no problem accessing the internet both wired and wireless; however, since installing 10.10 i have been searching for a solution for the last six hours but have been unable to get either to work.
as far as hardware is concerned i have a broadband bcm4313 802.11 network controller and am running through a linksys router which i know to be working because i have 4 other computers connected to it all with internet access. i checked ifconfig and a lo conection was listed but no eth0. i also tried downloading a broadband tar.gz driver but dont have any packages to build it and cant get any since the computer has no internet. i assume wired is easiest to setup so lets start there even though i use wireless 90% of the time. im new to linux so please dont expect me to know any terminal commands.
I cant get my wired internet connection to work. The command 'dpkg -s pppoeconf' returns ' installed ok installed'. My connection is through a router which is probably in a semi-bridge mode and I need to dial a connection to get the net started. The connection Auto eth0 is setup properly with the correct cloned MAC Address (that of my laptop).
I've also executed 'sudo pppoeconf' and ran the whole series of steps which towards the end said that my connection will be set on boot. However, the net doesnt work directly and I dont know how to dial manually either. 'sudo ifup eth0' returns 'interface eth0 already configured'. I tried some 10-15 threads but none worked. Ubuntu is handicapped without internet.
As of now, my internet works fine when connected with an ethernet cable.The problem is it doesnt seem like my wireless is working at all.The led light is orange, (its usually blue when it connects) and I cannot see my home dsl network.Is thereany specific troubleshooting steps I should take?HP dv6000 laptopwireless card: Broadcom Corporation BCM4311 802.11b/g WLAN
Background infoMy laptop (MySN MG6.c) is dual-booted with Windows 7 and Ubuntu 9.10, and connected to the internet through a router (Digitus DN-11004-O), which is set-up to use DHCP. The internet connection works fine under Windows, and my previous laptop, which also ran Ubuntu 9.10, had no problems connecting to the internet through that router.The network adapter is an Atheros AR8131 PCI-E (also detected as Attansic under Ubuntu)stem infoResults from running various diagnostics (I have removed the output that relate to the wireless connection, as I don't use it):
Code: $ uname -a Linux valyria 2.6.31-14-generic-pae #48-Ubuntu SMP Fri Oct 16 15:22:42 UTC 2009 i686
Each of those commands don't give me any error and it would seem like everything works fine, until I try to ping google or any website and I get an error that tells me that no host was found. I am using version 10.04 of Ubuntu server.
I'm having trouble getting onto the internet with ubuntu 9.04. I have just moved house and have just got the internet set up here (typing this on windows laptop with wireless). My ubuntu desktop is plugged in to the network, but in the top right hand corner when I click on the network icon I get: "Wired network device not managed"
In my old house I had a static IP. Is this anything to do with it?
Okay, a couple of weeks ago I was running 10.04, got an auto update that needed a firefox restart, so rather than restart, I just shutdown the computer for the weekend. When I booted the computer on Monday it would find sites (www.google.com, start.ubuntu.com) but it wouldn't download the necessary items to load the page. Now I have a windows laptop sitting next to the ubuntu box and it was online with no issues, so I know it wasn't the connection itself. So I decided that the update messed up the system so I downloaded 10.10 and installed that and ran that all last week.
On Friday I got a system update that required a firefox restart, so I ran firefox for the day and decided that since it was friday, I would just shutdown the computer and reboot on Monday.Well now Monday is here and now I again have sloooowww internet, to the point that URL.. times out and won't come up. I have tried doing a traceroute on both machines and the windows box gets all the way to www.google.com, but the ubuntu box gets about halfway there and then gets no response. I am at a loss, I don't want to reinstall every week. I did try to reboot and run the previous version of 10.10 that shows in the boot menu, but that does the same thing. One thing I did notice is that the broadcast ip is different than the machine IP, don't know enough to know if this is a problem.
A few days ago my wireless windows vista computer internet was running slow so i reset the modem. Then I went on the internet on my ubuntu machine machine and went to www.google.com and couldn't connect to the server so i tried linuxquestions and i couldn't connect but i could ping sites. My wired and wireless windows computers worked fine. So I called Comcast (my ISP) and said it was a router issue. So I looked online and it said to disable IPv6 on firefox so I did but that still didn't work.
I've got a new HP Compaq Mini 110c-1110SD. I've booted Ubuntu UNR 10.04 Beta2 from a USB stick and at first it seemed like everything worked so I installed it (dual boot with the installed Win XP which works fine, no network problems)
But .. I forgot to check if internet worked. Since I don't have a wireless, I plugged in a cable and the Auto eth0 showed up as connected.
Looks good, but I can't get internet to work. Local browsing on my LAN works ok, but getting on the internet doesn't work neither does apt-get so updating is a problem too. Strangely enough, ping does work ...
I thought it had to do with UNR being a beta, so I've booted from a live UNR 9.10 usb stick, but same problem, no wired internet.
I'm totally stumped. I've been running Ubuntu since 2007 on several PC's and never had any problems with networking.
what is the command to restart the network services? ive forgotten i think it uses -hup switch though. about 1 in 20 boots on my desktop ubuntu system results in the system insisting its no longer on a network yet has a fully functioning network card. a reboot always fixes the issue but that doesnt seem like a long term solution to me. If I ping a neighbouring system I get nothing. (sent packet count increases in ifconfig) If I ping from a neighbouring system back to my desktop I get nothing (no change in packet count) I can bring down and back up the network interface with no results. A sniffer shows the system definitely isnt sending anything out Everything worked previous boot and will work again after a reboot.
My desktop PC has 2 NICs. I have Ubuntu on it since several years, and I remember that both eth0 and eth1 used to work. However, I discovered recently that currently only eth0 works, and eth1 is dead, but I don't know why. It's been a while since I've tried eth1, so I have no idea when exactly it broke. I suspect the problem may be related to the fact that the MAC address is incorrect: it is set to 00:00:00:00:00:00, which seems wrong. But I have no idea how this happened...Any idea what might be wrong and how I can fix it? Here is some output which I think is useful:
Code: peter@cheetah:~$ ifconfig -a eth0 Link encap:Ethernet HWaddr 00:18:f3:68:42:78
I have a wireless network (192.168.1.0) that's bridged to the Internet and a wired one (192.168.0.0) that's only local. When I am connected to both networks, Natty wants to route my Internet traffic through the wired, local-only one.
Can I make it automatically "just work", so that the right network is chosen for Internet traffic? Otherwise, what's the workaround?
If i leave my laptop idle for sometime, my usb datacard connection gets disconnected. I know its a dial-up connection and if no application is accessing internet it disconnects on its own. The problem over here is when i click on the icon and click on activate it won't happen. So, i have to unplug the hardware and then re-insert it to make it work again.I went through a site, there they have mentioned a work around that is to keep a ping command always running. I'm fine with that, but why do we need to remove the hardware n re-insert it to make it connect to the internet again
I'm having mysterious wired network problem with my Karmic/9.10 machine. It hasn't been in network a while, but now I finally got the cabling done. I can't get the IP from dhcp server (TW-EA510), and static settings doesn't work either. Fresh cabling showed OK 1Gb connection on tester, and win7 laptop works fine. I even tried with long cable though the rooms, but it doesn't help, so it definately isn't the new cabling.
Log from the router after issuing #"dhclient": Feb 16 23:01:43 DHCP SERVER: DHCPDISCOVER from 00:01:29:fb:c5:d1 via br0 Feb 16 23:01:43 DHCP SERVER: DHCP offer to 00:01:29:fb:c5:d1 Feb 16 23:01:49 DHCP SERVER: DHCP request from 00:1b:ea:c8:a0:ba Feb 16 23:01:49 DHCP SERVER: DHCP ack to 00:1b:ea:c8:a0:ba Feb 16 23:01:54 DHCP SERVER: DHCPDISCOVER from 00:01:29:fb:c5:d1 via br0 Feb 16 23:01:54 DHCP SERVER: DHCP offer to 00:01:29:fb:c5:d1 Feb 16 23:02:03 DHCP SERVER: DHCPDISCOVER from 00:01:29:fb:c5:d1 via br0 [Code]....
Motherboard is some old Lanparty with two ethernet ports, NVidia CK804 and Marvell 88E800 rev 13 Gigabit netwok adapters, neither of them works. At least another of them has been worked earlier when I last got it wired. It's been a while, so I'm not sure which one of them and with different router if that matters.
I installed a fresh Ubuntu 10.04 system. After first boot no wired network was found and no access to internet. However, in network connections there is eth0 present. All settings are as should be - IPv4 is in automatic mode and IPv6 - Ignore. I tested internet from another machine with Windows on it and internet connections is ok. I checked etc/network/interfaces and there is as follows: auto lo iface lo inet loopback