Ubuntu Networking :: Have No Internet After Re-install / Sort It?
Jul 24, 2011
As a recent converter to Ubuntu/Linux I haven't had to use the forum as everything that I wanted worked. Wireless etc. But as I got comfortable I started messing about with the settings and preferences and ended up re-installing Ubuntu.(Due to my windows upbringing). Since then I've been unable to connect to my home network. Not hardware as I'm logged into windows and on internet to type this. I've had a look through the forum but didn't really see anything that matched my problem. I've run Iwconfig and Ifconfig and below are the results. code...
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Feb 9, 2011
I was not connecting to Internet in kde so i edited auto etho settings i make some changes
but alas! no Internet connection
and the worse thing is that i lost connection in gnome desktop too
but it is showing me i am connected to Internet
but i cannot surf (server not found))
{i changed the setting to default {{after i changed them in kde ]]
and notice following
in edit auto etho connection
connect Internet automatically-yes
ipv4 setting--
automatic (dhcp)addressees nonly
ipv6 setting
ignore
so ubuntu is showing me that i am connected to Internet but i cannot access Internet
so the main problem is ""ubuntu is showing that i am connected to Internet but my browser says no server found and i can not install software in software center it gives me error --please check you Internet connection
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Feb 25, 2010
I have Fedora 12 and Windows 7 in a dual boot configuration in my lenovo laptop.The config of my laptop is core2duo 1.73, 3gb ram and 160gb hdd.I updated my fedora 12 yesterday. But after that internet stopped working. But I'm able to ping google.com successfully.Internet is working properly in my windows. I have posted this message from the same ethernet connection in my windows.I have posted the output when pinging google.com down here. code...
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Nov 12, 2010
I have just bought a HTC Desire Z mobile phone, running Android 2.2.
It has a feature to allow, via the USB cable, use of the Internet connection on a PC so that the phone can connect via that, rather than use the 3G or wi fi when those are not available or not wanting to use them. I want to download lots of applications without draining my 3G data allowance.
I have searched via Google, and some people have said that it just worked for them. They plugged in the phone to their Ubuntu PC and they could use the Internet on the phone.
But I cannot get it to work. I am new to Android, and still figuring out the phone. In the Settings/Wireless & Networks, there is an option for Internet Pass-through, which is trying to connect but never does. Then it comes up with a message saying:
"Unable to connect to PC" and asks me to install HTC Sync software (which is Windows only).
Is there something I need to install in Ubuntu to get it to work?
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Jan 4, 2009
I have installed Fedora 8 on an old PC to use as a home network and I am having trouble getting a Windows PC running XP to get through to the internet, but I am able to access the internet from the Linux box with no issues. I can ping the gateway on eth0 from the Linux box, but I can't ping it from the windows PC. I am able to ping the IP address for eth0 from the Windows PC. My internet gateway is a modem/router from Hughes net. I also have a Netgear router between the Linux box and the Windows PC, but there doesn't appear to be any issues because I can ping both NICs from the Windows PC. I have pasted my Linux NIC config below. code...
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Apr 12, 2010
Code...
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.
So, how do I fix this ?
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Aug 14, 2010
I'm using a Dell Vostro 1000, and i just installed lucid. However, whenever i try to install either the broadcom STA or B43 drivers, i get this message
SystemError: Failed to lock /var/cache/apt/archives/lock
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Oct 11, 2010
My PC completely freezes after viewing any program on ABC's (Australian Broadcasting Corporation) iView service. The time at which it occurs varies but it completely locks the PC.
I'm running 10.04.1 and have an Nvidia 6200 card, I'm running the propriety drivers.
Could this be an issue with my graphics card? I updated it a couple of months ago and can't think of any other changes that have been made.
I have the latest version of Flash.
My biggest problem has been coming across someone else who has experienced the problem so how should I be going about trying to debug it?
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Apr 9, 2010
Linux Internet Doesnt work
Its connected...
to router netgear
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Jan 19, 2011
I am using Linux operating system fedora 6 .Before today everything is going well. But today internet connection gets failed. It can not connect to the server for the internet connection. But in the same computer,installed windows operating system shows the internet connection.Please try to answer my question why the Linux operating system can not connect to the internet?
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Feb 8, 2010
I have setup a dhcp server on eth0, & i have static Internet connection on eth1.
now clients are getting ip automatically, they are able to trace root upto eth0 & eth1.
but i am not able to access Internet from client machines. i am using open suse11 as a server.
i am not able to do telnet & ftp also from client. i am able to access Internet from server.
so please help me to configure my server so that i can access Internet from client machines also.
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Aug 5, 2010
I can not get NetworkManager to handle my Huawei E220 usb modem. I have searched forums and tried a lot of things. I have just upgraded from openSUSE 11.2 to openSUSE 11.3 using zypper. It seems to work fine except that umtsmon stopped to work, so for now my laptop has no connetion to internet at all. Here are some information about my settings:
I have used usb_modeswitch to make the device a modem. Am I right if I say that usb_modeswitch is a one time command, or does it swap the setting each time it is called? Anyhow lsusb states that the device is a modem. (All the time.) code...
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May 14, 2010
I have no idea how I managed this, but I am able to connect to the internet but NetworkManager doesn't show any connection. This means that until I kill it, I cannot log in with Pidgin, because it is waiting for a connection.
Do I disable NetworkManager completely or do I try to make it recognize that I am connected to the Internet? If the latter, then how should I go about? (Please let me know which files I need to show you, because I know I've messed around with a couple).
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Sep 4, 2010
After a fresh Ubuntu 10.04 install, no internet for some reasons.
Here is what I have in ECT/network/interfaces
Here is the results of sudo dhclient:
No working leases in persistent database sleeping.
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Oct 16, 2010
I just installed Maverick on my netbook (Lenovo S10-2) and am having network issues. I had to plug in to the ethernet port before installing to get extra packages and updates. I was going to get the Broadcom STA wireless driver after it was complete. Installing the OS worked fine and it downloaded everything it needed to. But when I restarted, it didn't recognize when I plugged in the ethernet cable, making getting the wireless driver impossible. I reinstalling twice. Same story.
I tried different cables and none of them worked. Also, I tried to compile the wireless driver myself so I could put it on without having internet.
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May 8, 2011
I removed network manager on my laptop via sudo apt-get remove --purge network manager network-manager-gnome but now I can't install wicd because I don't have Internet.
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May 6, 2010
I am using 10.04 and is trying to install the linux drivers for Nokia CS-10.However when I try to install the deb file, it doesnt work. The installation process starts then its starts another process then gives me the error which state I have to close the previous installer window.[URL]
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Aug 2, 2010
I've just installed ubuntu 9.10 (64bit) on a new Dell Precision M4500 (actually I've made it dual boot with Win7).
I'm unable to connect to the internet. For now, I'd like to get the ethernet card working.
Connection is fine under Windows 7, so I think it is not a hardware problem.
To start with in ubuntu, I *was* able to connect to the internet via the NIC. Subsequently (not sure why), the ability to connect became intermittent: at startup, I would either be able to connect or not. If able, I remain able until reboot; if not, I remain unable until reboot. Now, I am not able to connect at all. All this makes me suspect that the NIC driver in ubuntu is OK.
On the suggestion of a local expert, I manually edited /etc/resolv.conf(originally blank) to contain the lines: search tamu.edu nameserver XXX.XXX.XXX.XXX (using the IP the expert gave).
less /etc/network/interfaces shows: auto lo iface lo inet loopback
The output of "ifconfig" is shown below.
ifconfig shows:
eth0 Link encap:Ethernet HWaddr 00:26:b9:e3:03:81
inet6 addr: fe80::226:b9ff:fee3:381/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:175 errors:0 dropped:0 overruns:0 frame:0
[Code].....
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Oct 21, 2010
I installed Enlightenment into my machine and, in the course of the installation, Network Manager was removed. I now have no internet connection. I've searched and tried a couple of possible solutions here but I cannot get them to work. When I try to use a downloaded deb file Gdebi cannot install it. It seems that if I re-install Network Manager I'll lose a lot of my Enlightenment installation. What I'd like to do is install Wicd. I dual boot with Win 7 so all is not lost. I understand that there's a way to istall Wicd from the command line without an internet connection but I cannot figure out how to do it.
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Oct 29, 2010
I Installed Ubuntu which was on the laptop before and this install doesn't want to work with a Internet connection. I know my connections is good and the Laptop is fine because it used to have dual boot and windows connected fine.
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Dec 20, 2010
I have a Dell XPS 420 with Ubuntu 10.10 (2.6.35-23-generic x86_64). My internet used to work (out of the box) without any problems, but after install of Windows Vista (Home Ed. 32bit), I am unable to use the internet in Ubuntu. The network card is a Linksys WMP600N Wireless-N PCI Adapter. In Windows it works without problems.
In ubuntu, the network manager indicates that I am connected to the network, and I have an IP address in the 192.168.* range. I am able to ping the router, but unable to ping outside addresses. I have not changed anything, but still my wireless connections has stopped working.
Code:
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Aug 7, 2011
I recently got Tata Docomo 3G Data Card. I was unable to install it on my ubuntu 10.04. My Configuration:
Device: Huawei E367 Internet Device (3G e-stick)
OS: Ubuntu 10.04 AMD 64
Processor/ Architecture: AMD Athlon X2 64 bit (ASUS)
I don't have any other means of internet connection, so that I can download few files on ubuntu 10.04. I got to load all files from Windows and then start from ubuntu.
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Jul 10, 2010
So i just intstalled ubutnu for the first time and the internet doesnt seem to be working, i am able to go on some majour websites such as google and gmail but others i am unable to visit.
I tried creating a blacklist-ipv6.conf file in the appropirate location
and i have even tried turining off ipv6 i forfox about config by chagning the value o true
but without any luck.
btw i tried pinging google and it works
my computer is connected to a t homehub and these are some screenshots i thought you might find useful.
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Jul 20, 2010
I dont know how to install backports! I have tried everything to get my usb adapter to connect but it still dosent recognize my home network! How do I install backports and headers? (ubuntu 10.04 amd 64) [URL]
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May 5, 2011
I'm trying to create a flash drive that I can use on my laptop to boot into ubuntu. I followed the instructions on the download page to create le usb drive and was successful.My problem is that whenever i install my nvidia drivers, my internet completely stops working. Both wired and wireless work fine on a fresh install. I can reboot and try again and they both still work. While installing the nvidia drivers however they both stop working, and upon a reboot they still aren't working. I can connect via my desktop and my phone to the same access point i'm trying to go through on my laptop, so the problem is isolated to my laptop.
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May 13, 2011
i have a dual boot system with xp and ubuntu 10.10 (which i recently installed). The internet works fine on my xp but on ubunutu it did not work.
i tried few things, like changing the proxy setting in mozilla firefox etc, but i did not work
i am attaching snapshot of ifconfig, resolve.conf and route-a commands for your referral
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Jul 27, 2010
I am trying to install ndiswrapper for a netgear wna1100. My nic card is fried so the only way I can use the Internet is with the USB card. I am running fedora core 13 on an older Dell computer.
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Aug 28, 2010
I have just installed openSUSE 11.3 Linux on my USB External HDD. I am using fast internet connection and I am able to use it fluently in Windows XP. But not able to do so with openSUSE 11.3. As far as I know there should be a tray icon for N/W but its also not shown. And when I start N/W manager it states that n/w manager is already running.
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Jan 24, 2010
After installing Slackware 13 and configuring it as a router, I'm getting very slow internet speeds on my clients. It takes forever to connect to a website or downloading 100mb bin file also takes forever. On the Slackware box the speed is fine though. When I boot from my previous Slackware 12 drive, the speed on the clients is ok again.
I have compared config files from my old and new installation and haven't found a difference. from other posts I learnt that disabling IPv6 by adding it to the blacklist could help. But this didn't help me either. I have also compared a traceroute on both installations. This also doesn't show a (big) difference.
The only difference I have found is that in my Slackware 13 setup the following modules are loaded while with my old Slackware 12 lsmod is empty.
Code:
The only thing I can think of is a missing option in the kernel. I have used the huge-smp from the Slackware DVD, assuming this would have all the important stuff enabled by default. It this right?
Some additional info:
eth0: nVidia Corporation MCP51 Gb onboard Gb NIC, connected to LAN (static)
eth1: 3COM 3C2000 Gb NIC, connected to cable modem (dhcp)
dhcpd is running to configure clients in the network
arno-firewall installed
Files I have compared with my old (working) system:
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Sep 21, 2010
im installing Windows 7 and CentOS 5.5 on my computer..but, since i installed centOS, my windows can no longer connect to the internet. i already diagnosed and it said that my ethernet/LAN cable didnt connect (the error message is "plug an ethernet cable into this computer") although i've already checked that it is properly connected and when i see the ethernet port behind my PC, the LED indicator is on.However, when I switch to CentOS, the internet is working fine.
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