Ubuntu Networking :: Error "The Network Name Cannot Be Found" The Connection Has Not Been Restored" After Update To 10.10
Apr 30, 2011
I have a home network with one computer with ubuntu and two laptops with vista and one router. Last month, ubuntu could access files on vista machines and vista machines could access files on ubuntu machine. Everything great. The only change was an update to ubuntu 10.10 in april. After the update, the ubuntu machine can access files as before, but I get "The network name can not be found" the connection has not been restored". What changed in the last update, and what must i do to restore access to Ubuntu files?
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Feb 9, 2010
I have 2 computer: 1 computer install ubuntu v9.10, in this computer already installed openssh-server and openssh-client, and 1 computer install windows. In computer with windows , i used putty connect to computer with ubuntu, but i can't connect. I don't understand what's error.
In the Putty , i configured:
IP : IP address of computer Ubuntu.
Port 22
Connection Type SSH
This is error: "Network Error: Software caused connection abort"
In computer with windows, i can ping computer with ubuntu and in computer with ubuntu i can ping computer with windows.
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May 14, 2010
I am trying to Setup citrix ICA client 9 on Ubuntu 9.04 Server. I installed it very easily and I am not getting any lib error also. But when I try to connect to the citrix server, it fails with a pop up saying "Error in Network Connection Network or Dialup connection may be preventing ......" This is driving me crazy from 3 days. My project is to check the feasiblity of a Linux desktop
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Aug 6, 2010
Ive recently switched over to AT&T Uverse TV/Internet service and I've noticed that when I ssh into my linux( 2.6.18-194.3.1.el5xen CentOS) server I get disconnected. When I'm using putty it gives the "network error software caused connection abort" error. When I'm at work using one of our jump servers and ssh'ing from the command line it will freeze up from time to time but never disconnects. I think the problem is either with the OS or the new AT&T modem. At first I had my CentOS server using DHCP and it would disconnect within a few minutes after I ssh'ed. I switched over to a static IP and now it goes about 10 minutes before it disconnects. It doesnt matter if I'm actively typing or not, so it's not an inactivity issue. I have the firewall turned off on my laptop, and since the issue happens on multiple devices, including my iphone I dont think thats the issue.
I have iptables and selinux turned off/disabled so thats not it. In putty I have enabled Keep Alive(30 seconds) and it still disconnects. I opened the port on the modem to allow ssh for the IP of the linux server. Ive also recently reinstalled this server with CentOS so I can't compare with the previous internet provider as I didn't reinstall until after I switched over. BUT previous installs with CentOS 5.2 worked fine with the previous ISP. AT&T Modem is a 2wire 3800HGV-B
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Oct 16, 2010
Before the update my computer was named "joe-laptop", (i think it was the host name is what its called, that was named "joe-laptop". Along with that, on my KDE session/desktop (I installed Ubuntu, but later got the kubuntu desktop packages) I had the gnomes network manager used instead of KDEs (kdes network manager was giving me problems, I would type the password in for my wifi router, then it would stall, then ask again as if its ignoring the password. but thats not important so im not gonna get into that whole part (at least yet)).
When i upgraded from ubuntu 10.04 to 10.10 the login screen said "localhost.localdomain" rather than "joe-laptop", and in the terminal it says "joe@localhost", rather than "joe@joe-laptop", along with that it kicked KDEs network manager back into use on the kde desktop, which means I can't access the internet on kde now.
I'm trying to fix the network manager part myself, but if I can't get that Ill post in this thread or edit this post. I was able to previously get gnomes network manager to load over it so I'm sure I'll hit it again.
I figured out the problem, it turns out that the name problem was that it deleted the /etc/hosts file, so i just copied the older hosts I backed up a month or so ago and slapped it in there and it worked perfect.
As for getting the gnome network manager, it must not be compatible with the qtcurve gtk theme, cause I switched it the gtk theme to a newer one, then loaded back up nm-applet and bam it came up there!
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Feb 21, 2011
im on node1 when i type the command ssh node2@ip the terminal hangs up a bit then an error message stating that connection timeout but here is a thing: i cant ping to node2
but i can terminate the ping manually using ctrl+c when i terminate the ping usual message appears stating 10 packets transmitted, 100% loss
ps: when i go to node3 and ssh to node2 it works fine and also i can ping from node3 to node2 very fine. and the firewalls are down at all nodes -all wired connection over a switch
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Jan 18, 2010
On Windows 7, I have VirtualBox running Linux (Ubuntu 8.04), with Samba set up so that the Windows host can access it. But if the virtual machine is shut down & restored, or rebooted, the Windows Network no longer shows it. I've tried refreshing many times, restarting Samba, disabling/enabling the virtual network adapter, and running the succession of commands ipconfig /release, ipconfig /flushdns, & ipconfig /renew, but none worked. As a last resort I could restart the host itself, but is there a better way?
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Jul 9, 2010
I need to setup an Ubuntu Server to handle backups over the network (probably rsync over ssh). That server will then transfer the backup data offsite over a secondary external data line.How can I configure the ethernet interfaces to handle such a scenario?
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Mar 16, 2011
Could not download all repository indexes
The repository may no longer be available or could not be contacted because of network problems. If available an older version of the failed index will be used. Otherwise the repository will be ignored. Check your network connection and ensure the repository address in the preferences is correct.
Failed to fetch url 404 Not Found
Some index files failed to download, they have been ignored, or old ones used instead.
Im using 10.04.
Connection is fine. Maybe something wrong with server or any of my repository
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Oct 16, 2010
From the start ive been using ubuntu .and now im using lucid 10.04, what I see when I turn on update the multiverse and universe and the others, what I found is, Error. Here are the error from my terminal . It just annoys me, for now, I don't have any problem with any of it yet, and I don't want to have one.
Code:
adib@adib-desktop:~$ sudo apt-get update
[sudo] password for adib:
[Code]...
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Feb 5, 2011
While I am trying to install updates following error is displayed
W:Failed to fetch url 404 Not Found
, W:Failed to fetch url 404 Not Found
, E:Some index files failed to download, they have been ignored, or old ones used instead.
My internet conection is good, I've installed some updates months ago.
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Jun 16, 2011
When I try:
Code:
sudo add-apt-repository ppa:gdm2setup/gdm2setup
Code:
sudo apt-get update
Code:
sudo apt-get install python-gdm2setup
On the update I have error in terminal:
Code:
W: Failed to fetch [URL] 404 Not Found
W: Failed to fetch [URL] 404 Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
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Jan 31, 2010
This is more technical. I installed F12 and then I tried to update the system (system - administration - softwareupdate). I receive the following error:
Error Type: <class 'yum.Errors.RepoError'>
Error Value: Error getting repository data for installed, repository not found
File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 3125, in <module>
main()
File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 3122, in main
backend.dispatcher(sys.argv[1:])
File : /usr/lib/python2.6/site-packages/packagekit/backend.py, line 710, in dispatcher
self.dispatch_command(args[0], args[1:])
File : /usr/lib/python2.6/site-packages/packagekit/backend.py, line 657, in dispatch_command
self.update_packages(only_trusted, package_ids)
File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 1948, in update_packages
signed = self._is_package_repo_signed(pkg)
File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 1437, in _is_package_repo_signed
repo = self.yumbase.repos.getRepo(pkg.repoid)
File : /usr/lib/python2.6/site-packages/yum/repos.py, line 121, in getRepo
'Error getting repository data for $s, repository not found' $ (repoid)
Is there a need to set more my repo?
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Mar 22, 2011
i have a dual boot system set up right now through wubi. the installation went fine. but then i tried to upgrade ubuntu from 10.04.2 to 10.10. the update went fine, no errors. but afterwards when i restarted my computer and selected ubuntu, it said "error: file not found" it didn't even get to grub. this has happened numerous of times trying to upgrade in the past.
p.s: i have vista installed as the other side of the dual boot.
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Apr 6, 2009
This computer is using a Linksys WMP54G network adapter, and running Linux Ubuntu 8.10 with all of the latest updates. It was working fine for a couple months, then one day the internet quit working on it. I've tried playing with all of the settings, and can't get it to connect to the network. The windows computers in the house work fine. I also hooked my Linksys WUSB54GS USB network adapter and that worked right away. When I put the WMP54G back in, it will detect the networks but it won't connect. It gives the message, "the network connection has been disconnected", right away. Can someone please help with this. I work doing tech support for a small ISP and am excellent troubleshooting Windows but Linux is another story.
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Jan 24, 2010
Its a case of ".... wireless network connection active but still not internet connection .."I am using WEP - 128 key ... Works when I connect directly using ethernet cable ... but not wireless (pci and wireless router)
ubuadmin@ubucomputer:~$ ifconfig
wlan0 Link encap:Ethernet HWaddr 00:06:25:12:83:3b
inet addr:192.168.1.10 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::206:25ff:fe12:833b/64 Scope:Link[code].....
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Jun 11, 2010
These problems just started the last couple of days but I have been using Lucid 10.04 for a month now. My wireless Signal varies in strength wildly. I sitting at home, not 20 feet from my router. I never had these problems before Ubuntu Lucid Lynx 10.04. I am running both Network Manager and Wicd.
Errors:
1. Wicd states "Wrong Password" which is not true.
2. Dropping off-line for no reason, sometimes 3 or 4 times a minute and sometimes it works fine for hours.
3. Firefox 3.6.3 Automatically Checking "Work Offline"!?
[Code]...
I have the Proper Wireless Drivers. I have not changed my wireless settings, channel or WPA for 8 months now so I know thats not it.
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Oct 22, 2010
Recently I've installed Open Suse 11.3 along with Ubuntu 9.10 on my PC ( made it a dual-boot OS ). This morning while logged in, in Open Suse 11.3, found out that there were important update for kernel in Yast. So, did the update and then required to restart the PC. In the Grub/boot menu, I chose to log-in to Open Suse 11.3, but after a while it returned with " Error 15, file not found ". Luckily I was able to log-in in Ubuntu 9.10. Assumed that Error 15 is always related to misplaced or wrong configuration of Grub in the partition, I did several searching via Google, and found this possible solution HowTo Boot into openSUSE when it won't Boot from the Grub Code on the Hard Drive . So I tried the " Broken Grub menu: boot to the menu, drop to a console and boot openSUSE direct " method. But rightly after the " find /boot/grub/menu.lst " command as instructed in the solution, it returned with ( hd0,0 ) and ( hd0,4 ). Why there are 2 bootloader in the Grub ? Which bootloader should I choose ? And for convenience, here is my " menu.lst " folder that I get via Terminal in Ubuntu 9.10 :
$ cat /boot/grub/menu.lst
# menu.lst - See: grub(8), info grub, update-grub(8)
# grub-install(8), grub-floppy(8),
[code]....
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Mar 2, 2011
I have installed qemu/kvm and created a Bridged network connection which works just fine(Windows 7 VM won't work in NAT mode.)
But when I try to use NetworkManager it says that I have no network connection because the network isn't managed, (I set the settings in ifcfg-br0 and ifcfg-eth0 to be managed)
The real problem is that now I can't use my VPN connections (I have many) in NetworkManager.
Is there a way to have both of these pieces of functionality?
I am using FC14
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Jan 5, 2011
I install from openSUSE-11.3-NET-x86_64.iso. Installation was succesfull, but after install all packet on test internet / update was error. And after log in in installed system internet not work. I use router with DHCP
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Oct 18, 2009
I have Fedora 10, and today I finally had an opportunity to let the automatic software updates run. At the end it said to restart the pc. I restarted and now it won't connect to the network. What do I do to get it connected again?
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Apr 29, 2010
i've installed 9.10 today on my dell studio 1558. and with the new release of 10.4 i want to update my ubuntu but it say
Error: No Internet connection (although I've connected threw wifi + cable)
then goes onto say: Cant download relevant package information
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Apr 5, 2010
i have huawei usb stick modem, i'm connecting to internet with wvdial command, i have configured the file "wvdial.conf" to be able to connect, everything works fine i guess but the update applet still show me the message
Code:
Unable to check whether updates are available
connect to the internet and connection manager too .. it tell me i'm not connected, i think i must configure my connection in an other way .. but i don't know how ..
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May 10, 2011
On a school network the Windows and Mac computers connect to the internet with no problem. The Ubuntu(10.04) computers are connected and work on the internal network but have major issues going out of the building. I can get to one or two webpages to open and the connection dies...Server not found. Ping within the network and there are no lost packages, if I ping outside many lost packages.
We are using SonicWall and think it could be blocking...but why only Ubuntu? This is the same behavior for Firefox and Seamonkey. It's also the same for the thin/fat clients and standalone units. I did try a fresh install with no effect. The internet actually works on the one machine with ubuntu 9.10. I brought a machine home and it connected to the internet with no problem.
Two things I can think of that would of caused this are:
1- we keep getting windows about missing applets, someone may have clicked delete
2- I connected a server to run fat clients w/ LTSP and discovered my server and the schools were handing out the same ip's.
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May 3, 2011
I had to register with a new username, because I could not remember my logon details and have since changed ISP so could not get details sent, anyway that aside to the problem.
I upgraded to 11.04 and all went well (hence posting here and not in the Upgrade section) and it is running fine, well until yesterday.
I ran the update manager as I usually do when first entering Ubuntu and it did an update but then gave me an error message about file permissions and to check my connection (which was connected OK).It has also affected the Software Installer, and now I can not install any new software.
Is this a generic problem with the latest update or is it just my Dell Inspiron 1545 please?
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May 7, 2011
I can't update anymore since a few days :
Download (curl) error for [URL]...
Error code: Connection failed
Error message: Failed to connect to 2a01:e0c:1:1598::1: Network is unreachable
I read somewhere that I should deactivate IPv6, which I did with no success. It seems to happen since I upgraded gnome following this link : Archive:GNOME 2.30 - openSUSE My Internet connection is of course alive and working.
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Apr 30, 2011
I power on my computer, it is no wired network connections.
I tried command ifconfig and lshw -c network . it could find the network card eth0.
Quote:
Quote:
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Apr 3, 2010
I installed the driver for my network card. iwconfig and ifconfig are all responsive to connecting to the network, I'm given an access point address. Then, I try to connect to a website and no dice. ping www.google.com yields no result. What gives?
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Jan 29, 2011
I have a Broadcom Corporation NetXtreme BCM5721 network card on my server at work.Everything works fine for a few weeks, then randomly the network connection on the server will stop working. After it stops working, I will try to reconnect with the network manager, it shows a wired connection available, it shows the "connection in progress"animation, then the "connection disabled" icon.
I uninstalled the network manager and used manual configuration, but do you think the network manager was the issue? I can't have the server disconnecting randomly every few weeks with no way to know what the real problem is. Was there an issue with the network manager with 10.04?
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Oct 12, 2009
I am losing network bandwidth and I am quite frankly I am not sure why, I don't have allot memory 495.6Mib
But I clean my PC every few days "BleachBit"
I have read some where on the magazine Network receiving suppose to be higher. so how can I fix this issue please i am having allot problems, u use cable from Comcast
I am not quite sure what Information you might need from me to give.
I use Ubuntu 8.04 LTS
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