Ubuntu :: After A Reboot Lost Network Connection Again?
Feb 25, 2010
I running Ubuntu ver 9.04 I have 2 problems that I think are related. After finally making a network connection I updated Ubuntu, and after a reboot I lost my network connection again.I updated the following file nm-networkmanager-settings.conf and saved it. After another reboot I then lost my network connection icon and it also does not appear under System > Preferences. I tried to then update the same file and can not save it, I get "could not save file".I have tried sudoedit, sudo gedit, gksudo gedit and some others that I cna not remember now and all give me the same result
I have installed Lucid in a new laptop. Things are running OK except for the following problem:
I connect to the network/Internet using Wired ethernet (TCP/IP) with static IP. Everytime I reboot/restart my network configurations are lost and I have to re-configure. I have googled this problem and have seen a few posts/bugs in launchpad etc. for what appears to be the same issue...but unfortunately I am not getting a clear solution to this problem.
Just for clarity, I am using the following commands to re-configure my network everytime:
Also note that I have already tried editing the /etc/network/interfaces and the /etc/resolv.conf files. But it seems that these are not being picked or are being overridden.
I played with the Network Settings section in YaST, because I wanted to use the wireless network card I installed into the PCI port. OpenSUSE recognised the type of card and its MAC number, and told me that I needed to install a firmware (fwcutter something). I tried some changes on the cable internet connection (like activate on plugged) while I tried to change the wireless connection (like activate on boot).
What I have now is that my cable internet connection is not working at all (it was working just 3 days ago), my wireless internet connection is, as always, not working either. I managed to work the wireless card on Windows XP by finding its drivers.
Since the problem is with my office computer, I cannot answer the exact brand names of the ethernet card and wireless card. Shall I reinstall OpenSUSE 11.3 from the DVD I have?
Second problem: OpenSUSE does not recognise my external harddisk, it gives an error about mounting the device.
I have had long term access to a networked HP Photosmart printer but now I get the following message:
Unable to open device hp:/net/Photosmart_C5100_series?ip=192.168.0.161.
when trying to access it.The ubuntu desktop is wired to the router as is the printer and another iMac wirelessly can still print to the HP. HPLIP status shows the icon for the printer but with a red x indicating no connection to it.The only recent network change was the removal of another router from our network. (service is DSL via a combo modem/router from service provider which previously was connected to a Dlink router which has now been removed from the chain b/c was redundant to the modem/router)
When there is a power failure at my university for about 30 minute, my computer stays up because of a UPS, but the switch it is connected to via ethernet is reset. After this, my machine loses network connectivity until I manually select the network using nm-applet.
In System -> Preferences -> Network Connections, the network has the "Connect automatically" box checked.
However, in /etc/NetworkManager/nm-system-settings.conf, there is a line that says:
Code: no-auto-default=00:30:48:b0:11:07, and that is the MAC address of the ethernet card.
I had some problems installing 10.04, which I'm not going into here unless I have to, but it appears to be up and running now except my PC can't access the network, even though it's wired. This is the first time I've tried putting on a new build by myself as my son always used to do it (my PC used to belong to him many years ago, and is old, like me.)
I initially loaded Fedora 14 onto a Desktop and started to configure it to be a server but as soon as Iso software updates My network connection completely drops.
After having updated unconditionally all packages in Kde-desktop-factory-repository to get the latest version 4.4.4, I can no longer connect to the Internet through Knetworkmanager. I receive the the following message from a pop-up window when clicking on the Knetworkmanager icon
Code: KNetworkManager cannot start because the installation is misconfigured.System DBUS policy does not allow it to provide user settings; contact your system administrator or distribution.KNetworkManager will not start automatically in future.I tried opening Knetworkmanager in a terminal as root user through 'su' but received the following message:
Code:# knetworkmanager knetworkmanager(2331): KUniqueApplication: Cannot find the D-Bus session server:"Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken."
I just installed ubuntu 10.04 on my laptop. everything was working fine until i installed firestarter. i didnt like it and uninstalled it. when i did that i lost my wireless signal icon at the top of the screen, firefox starts up in offline mode, and limewire says that network connection is lost. i just want it back the way it was before installing firestarter. please help, i dont want to reinstall ubuntu if i dont have to.
I have my ubuntu box hard wired into my network. It all works fine, until I reboot my ubuntu box. After reboot, it can no longer see the network. I have it set up with a static ip. Not sure that I set it up completely correctly but it works fine...when working.. To fix the problem, I enter terminal: ifup eth0 That fixes all know problems until next reboot. What do I need to do so that it will remember settings and automatically be hooked into the network at power up?
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 was using Ubuntu 9.10 and was using fireftp ( firefox plugin ) to do some ftp operation. And then I noticed firfox is fozen so I reboot my pc by switching off the power ( restart doesn't work ). When I turn it back on again, no GUI anymore. I was taken to ttyl login commend.
I installed Kubuntu on my Toshiba A135 with no problems at all...everything works: sound, wifi, LAN, etc...BUT whenever I reboot/restart the computer my Display and Audio settings revert back to default, and it doesn't happen when I log out, just when I restart/shutdown the computer. I have an Intel 945GM chipset and I have set my external Acer 23" monitor as the default and only monitor with a resolution of 1920x1080@60Hz using KDE's System Settings...And I chose to disable the laptop's internal monitor...but whenever I restart, the display returns to a 1024x800 cloned resolution (the default one)...which by the way looks hideous on a 23" monitor. And also the sound mixer goes back to the default levels.
So, can anyone help me out? I've been using Ubuntu for over 3 years and I've never had any problems like this one. I have just fell in love with Kubuntu, it looks and runs great, but this problem/bug is keeping me from being comfortable with it... I've been reading some things about XRandr and some commands and stuff and nothing have worked until now. I wonder, is it a common bug in Kubuntu or maybe an erroneous setting in the session manager....?
i am using ubuntu and with all versions i have one pretty anoying problem. My wired connection sometimes lost connection and i can't reconnect for 3-10min. sometime longer. Technically everything is allright. With win7 i never had such problems. Any solutions how to fix this problem? Laptop: Lenovo Sl510 T5870(2GHz), 2GB RAM, 250GB 5400rpm HD, 15.4in 1366x768 LCD, Intel 4500MHD, CDRW/DVDRW, Intel 802.11agn wireless, Bluetooth, 1Gb Ethernet, UltraNav, Camera, 6c Li-Ion
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
I have a problem with klipper hotkeys. On reboot, they are saved in ~/.kde/share/config/kglobalshortcutrc but don't work anymore. they are visible in "system settings > keyboard and mouse > global shortcuts" in the klipper tab, but just wont work. However, they are not set if I try to access them by klipper menu "right click > configure klipper > shortcuts" It seems that shortcuts aren't even noticed by kde : xev's output from a successful shortcut ( alt+g) (notice the focusout/focusin instead of the keypress):
I have just upgraded to Lucid Lynx. Just after that the borders of disappeared. Anyway, I found out I can get them back if I enable Standard Visual effects from the appearance menu. The only problem ?i have is that the options don't get saved and I need to do this over again every time I reboot.
I have entered my primary and secondary DNS addresses through Network Configuration tool (system-config-network). But whenever I reboot the system it loses the DNS addresses. Following another thread, I tried changing the PEERDNS=no in ifcfg-wlan0; but it didn't work. I also put both DNS addresses in the ifcfg file, but that didn't work either.Does anyone know a solution to this?$ uname -aLinux fedoralinux 2.6.27.15-170.2.24.fc10.i686 #1 SMP Wed Feb 11 23:58:12 EST 2009 i686 i686 i386 GNU/Linux
I have a bit of a silly question, as I should know better, but I have a Toshiba A200 laptop that wasn't working well with the default ath5k driver so I switched to madwifi. It works great, but after the laptop goes into suspend or reboots, the driver doesn't get loaded and wireless isn't available.
I've been working around this by going to proprietary drivers, which shows the madwifi driver. When I say activate, it comes back with a failed message but works.
I'd like to save myself from going through this several times a day, but I'm not 100% sure what to do. Do I add madwifi to modprobe or something like that?
I turned down my txpower with the command: sudo iwconfig wlan0 txpower 3 Which works to fine turn down my broadcast power from the default value of 15 dBm to 3 dBm. But it is reset every time I restart Ubuntu 11.04 to the default value of 15 dBm. How do I save my modified txpower settings so they don't reset after a restart? It is really annoying having to re-enter the command every time I reboot my computer!
I run OpenSuse 11.4 with KDE 4.7. When I change the positions of icons in the main plasma panel, or reshape folder view plasmoids on my desktop, these changes are lost when I start my computer the next time...
I'm running PCLinuxOS 2010.07 (KDE) on my Acer laptop with Intel Mobile GM965/GL960 Integrated Graphics Controller. I have an external Acer monitor that displays at 1920*1080. I have selected my laptops internal screen to be disabled and use the external screen. The PC LinuxOS Control Centre selected the 'Intel later than 810 driver'. All works well whilst I'm using my system but when I turn off and reboot the settings are lost and I have a 1280*800 display on my laptop and the same on my external screen. Resetting the Display using Configure your Desktop allows me to reset the external monitors to my preferences but how can I make theses settings permanent?
Google brought me no love on this one, tried searching here with little luck as well. So I'm hoping somebody vastly more experienced than I can shed some light on my plight.
The situation: I have a CentOS 5.3 x64 server running the latest cPanel which works fantastic. I issued a graceful reboot and the server came back up (according to the DC) just fine to a login prompt. Apparently the system lost all of its IP address configuration. Primary IP, secondary IP's gateway, you name it and it was gone. Now my secondary IP's were showing in cPanel after I had the DC re-enter my main IP address/gateway. But listed as not active due to the fact that they were not anywhere to be attached to the interface. i.e. eth0:1 eth0:2 etc and so on.
I have no idea where to begin looking for this problem and am afraid to reboot it again (at least until I get my lantronix spider up there). I've never experienced this with any of my other CentOS/cPanel servers either. All similar configurations CentOS 5.3 x64, latest cPanel as well. My hardware is all Supermicro gear as well and has been solid in the past.
Maybe I'm just missing something, granted I've only been managing Linux based servers for about two years now. This is actually the first real problem I've ran into on any Linux distro, they are normally pretty solid. So I assume it's a configuration error on my part somewhere.
after a reboot of my Lenny system, the default gateway will lost. Then i must try "networking restart" and the gatway will be set
my interfaces looks :
# This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). # The loopback network interface auto lo iface lo inet loopback
I've installed Fedora 12 KDE using VMWare, but I can't for the life of me get my display settings to stick. When I change the resolution, my display responds appropriately but upon logging out or rebooting, these settings are lost. Am I missing something completely obvious here?
After I installed the new Fedora 13, all went well without problems.
Unfortunately, the sound settings are not retained. That means after a reboot, I have to set this again and again.
I have an: HD 5.1 Intel OnBoard Sound Card. I run "gmix" or "kmix", the rear wheels boxes are always "mute". I put on this, but after the restart the setting are lost.
The PulseAudio settings are set to 5.1 Digital Sound.
What can I do to go the the settings are not lost?
