Ubuntu Networking :: Reset Network Manager To Default?
Oct 23, 2010
I seem to have somehow mangled my my Ethernet and wireless's connection to the outside world on my Ubuntu 10.04.1 machine. I was trying to get a static local IP, and that worked great for a few days, until I lost all Internet access completely. However, I can connect to my router on my wired connection - but not the wireless.
You can see what I did here: http://ubuntuforums.org/showthread.php?t=1600784
Now, I just want everything to work as it did when I installed Ubuntu 2 months ago. How can I reset Network manager back so that it just works? I realise that don't need a static IP, it can only be 2 IPs, as I have 2 PCs only.
Or is there some better way to manage my networks? I'm not the best when it comes to those.
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Jun 25, 2010
The other day I was using BitTornado and it was running so slow it was almost unholy. After some research I found out that if the yellow light was on it means I couldn't receive any incoming connections and had to open some ports on the firewall. That, my friends, is not the problem. I tried to manually open up the bittorrent port and did some other things that I can't quite remember but eventually I accidentally killed all bittorrent functionality on my laptop.
Is there any way I can reset my network and ports back to the default settings or am I utterly screwed? I'd really prefer not to have to reinstall my whole OS just to fix my bittorrent or worse, have to download on Vista *shudders*. I'd rather go back to my uber-slow bittorrent than none at all. I've tried everything I can think of, even the godlike might of Google couldn't get me out of this one. Now I am forced to bother you, all because I wanted to see a damn sci-fi film from Switzerland (Cargo[2009]).
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Jun 25, 2010
Accidentally I removed the NM Applet from the panel and I am trying to reset it. When I right-click on the panel and "Add to Panel", I couldn't see Network Manager. Hence I couldn't connect to the available wireless network. I am able to add Network Monitor, which is similar to Network manager, but this just displays info about current network.
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Jul 15, 2010
Okay something i find very odd. When booting the livecd network manager is there, i select my wireless net and connect. Yet i install and it doesn't appear, i click the network bit under the status tab of the computer menu and by default it's using ifup and not network manager...anyone else get that? Or is it supposed to be that way...seems rather unfriendly though.
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Sep 17, 2010
Have searched for this and am sure the answer is out there somewhere, but I can't find it. My wired network is configured as AUTO, and is DHCP, I can add a new static config, but can't get it to load, as the original AUTO always loads on a reboot. I need to be able to run sudo Network manager so I can reconfigure the default..
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Nov 30, 2010
The default name server set by network manager works just fine much of the time but there are times when it slows down badly. What I want to do is to have network manager add extra nameservers to the list when it starts the network.
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Jul 19, 2010
I upgraded from 11.2 to 11.3 and works great except two problems.
1. it was installed on Thinkpad W500, and its sleep mode doesn't work, the computer cannot wake up from sleep mode.
2. After a hard reset due to stuck at sleep mode, the KDE network manager couldn't find any network interface anymore, even I tired to disable and enable "user Controlled with NetworkManager in Network Settings, still same problem. it always say "network management disabled" regardless the network manager checkbox status in Network Settings. On the other hand, Traditional Method with ifup can detect the my wireless and ethernet ports and work under ifup method.
so does anyone has idea about
1. how to configure the sleep mode for laptop?
2. how to bring back the network manager again? (I have "user controlled with network manager" checked in network settings.
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May 5, 2010
I have been encountering this problem, not only on 10.4, but on older versions too: I use a wifi router to connect my laptop to the Internet, but sometimes I need to connect directly to another computer to move some files over GLAN. But Ubuntu's Network manager doesn't allow me to configure the eth0 interface without specifying a gateway (no gateway = grey submit button), but when a gateway is specified, it always rewrites the default gw specified already by the active wifi connection and returns back after unplugging the eth cable.
Of course this can be solved by a few route commands, but this is unacceptable since it is needed to establish the cable connection without any further assistance from within and as well without replacing the default gw and thus breaking the Internet connection. Is there, please, any possibility how to prevent Network Manager from replacing these routes?
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Dec 5, 2009
I use network manager applet 0.7.1. I had set the automatic wireless connection to my my wireless network (WPA key secured). Recently, I get the following problem: At the automatic connection, I get the message: Network manager applet (/usr/bin/mn-applet) needs default keyering. As I don't know what it is to type it and then, deny or OK, it doesn't get connected to my wireless network.
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Jun 7, 2011
I've not found how to configure more than one ip address with network manager.Nor with kde nor with plasmoid network manager.I need several virtual ip addresses for eth0 when the "default" of eth0 is connected i.e. "Connected to Auto eth0" should initialize the virtual interfaces.I have not found no even how to configure the ip address.I think this will be used from ifup config in yast or not?There I have the virtual interfaces but they are not taken from network manager.And last but no least: Is it possible that when using network manager the eth0 is enabled even no user has logged in?
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Jun 4, 2010
I'm trying to set this open-nic-dns (69.164.208.50) as default (instead of 192.168.2.1 - router-ip). So if I try to edit /etc/resolv.conf to this nameserver - but if i restart it's 192.168.2.1 again.
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Mar 14, 2010
Hearing the praises about fastness of xfce all over the net i decided to try it for my fav ubuntu i rightaway installed xubuntu (without creating a bakup of the names of programs that were going to be installed which i generally do to fully remove any utility that i install for test) i understood that fast for xfce actually meant light(stupid me). now i switch back to gnome onlt to find xfce stuff like pacmn file browser and wicd to name a few. i removed the pacmn browser but when i remove wicd the default network manager does not show up in the task panel i would like to know:
1.how to get back to gnome'z default network manager AND
2.the list of utilities installed when xubuntu-desktop is installed
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Jan 21, 2011
Recently I purchased a new laptop and installed openSUSE 11.3 x64 Gnome. I was running openSUSE 11.2 x86 Gnome on my previous laptop. Most things are working well, although still tweaking things here and there.
The biggest issue at the moment is starting the network. When I boot the system it loads into desktop (gnome) no problem, but then takes between 3 - 5 minutes to come up asking for Default Keyring Password before it will launch network manager. Everything else has loaded and it running fine except the network.
The first time I launched the system (after install) it worked perfectly, however soon as a set the password for the Default Key this started happening. The time delay before it launches does vary each time but always around 3 minute mark.
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Mar 11, 2011
Is there a way of resetting all of the network settings to standard, as if a fresh copy of ubuntu had just been installed? The resulting discussion trouble-shooting the OP's specific problems were detailed and informative, but failed to answer the fundamental question:
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Apr 1, 2010
I've been having a network problem that I've been able to temporarily solve by rebooting the router, but even that can be shaky at times, and it can sometimes disturb others' internet activites, so I'd really like to tackle this while I can. I had an old thread about this, but it's ancient history by now, and plus which, I've got a bit more Linux experience and patience than I did before.
The basic problem is that NetworkManager will associate and connect to my home wireless network, but a) it won't let me ping the router or anywhere else ("Destination Host Unreachable"), and b) the connection lasts for maybe a couple minutes at most. If I reset the router, however, 9 times out of 10 it will associate and connect successfully and I can get online, but I have to run a constant ping to the router with a 10-second interval, otherwise it drops the connection, unless I'm doing a lot of other heavy network activity.
ping 192.168.1.1 (the router):
Code:
I've tried wpa_supplicant, but this is what I get (it's apparently unsuccessful...? ESSID/MAC addresses censored where necessary):
Code:
The last prompt line is included because I cancelled it myself; it didn't abort on its own. If left unmonitored, it basically keeps doing this over and over, with no visible network activity at all.
With NetworkManager, I can keep selecting the network's ESSID over and over, and it seems to reconnect, but I still can't ping out anywhere. I'm using a Netgear WN111v1 wireless adapter with ndiswrapper and the Windows drivers. I have no idea what the chipset is, and I doubt that Linux drivers exist for it, even if I knew what it was. The router is using WPA2 security (hence my trying wpa_supplicant)
lsusb:
Code:
ifconfig wlan0 (while connected; IP/MAC addresses censored where needed):
Code:
ifconfig wlan0 (while not connected; IP/MAC addresses censored where needed):
Code:
Code:
I only include this for format checking purposes. The commented out "psk" is the actual text passphrase, while the uncommented one is (presumably) a hex representation of the same key. Is this correct? I've never done this with wpa_supplicant before, I've only used NetworkManager (which is a pain in the @$$ because it requires X to run, and so it disconnects any time I log out/back in ).
Is there any hope of getting my wireless connection permanently working, so that I don't have to reset the router every time I need to reboot or log out/back in?
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Jul 1, 2010
I recently fixed an annoying problem and I thought it would be nice to share my solution here. The problem was that after a cycle of suspend/resume, Network Manager would only auto-connect to the same network as it was previously connected to. So, for example, if I suspended my laptop at home, and then I went to school and resumed it, it would try to connect to the home network, and then just give up. It would not connect to the school network unless I explicitly told it to.irst, I'll describe the fix. If you're having this problem, you can this. Copy the following:
Code:
#!/bin/sh
case "$1" in
[code]....
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Jan 24, 2011
I am a Windows refugee who discovered Ubuntu as a way to save my files from my virus-ravaged computer. Had no installation discs for Windows, so when I had to wipe my hard drive and start over, I decided to give Ubuntu a try. I've had mixed success, but that's another post...
Right now, the problem is that I installed 10.10 two weeks ago and was able to connect to the Internet with no problems - until yesterday. Suddenly, our wireless network (the only one in the vicinity) does not come up as available in Network Manager. In fact, the entire wireless option disappeared. I know there are many posts and threads on here about this, but weeding through them trying to find an answer is more frustrating than actually dealing with the problem. I know the router works because I can post on this forum from the Macbook. I really like Ubuntu and would like to keep using it, but not being able to connect to the Internet now on top of the other issues I've had is making me doubt I want to continue down this Linux road.
P.S. When I attempted an analysis through System Testing, it said something about there being no proprietary drivers?
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Jun 14, 2010
I have used ubuntu in the past but had a lot of hardware issues with it and unfortunately moved back to windows (( BUT i have tried Ubuntu again and all seems to work great except wifi My wifi connection is sort of working because when i run SUDO IWLIST SCAN it does pull up all available networks. But in the network manager icon on the panel i left click but i see no networks and can't connect to anything. I WOULD LOVE TO keep Ubuntu and use it permanently but I must get wifi working or else this won't be possible.
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Feb 18, 2010
I have the problem with my notebook, that, after I used it at work, the network-manager always tries to autoconnect after boot. He has no cable network and so I get the message "not connected" after a while.how to tell the network-manager, not to autoconnect each time?
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Jul 10, 2010
I recently put Linux on a Thinkpad T40 I got. The wireless card works out of the box--I can see nearby networks. However, I can't connect to mine. network-manager would try (spin spin spin), fail, ask for the password, and then go back to the beginning and repeat indefinitely. This happened to me on a different computer, and on that one all I had to do was use wicd instead of network-manager. So I installed wicd, but it's not working either--it hangs at "Obtaining IP address".
I've found many, many threads with people who had the same problem, but none of their fixed worked for me.
I also tried to get wifi going manually, using this guide, but that didn't work.
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May 3, 2011
I recently installed the new 11.04 release and was messing around with the Compiz settings on Ubuntu Classic. I tried logging on to regular Ubuntu and everything crashed. When I start up there is no log in screen, only text shows. (I enter my log in information then type 'startx' in the terminal to show my desktop.)
The desktop shows a messed up version of my custom configuration with Cairo-Dock all weird and everything in the wrong place. Also my custom start-up screen that I installed is distorted, and the GRUB screen shows up in purple.
If there was a way to reset Ubuntu 11.04 to the default settings? I tried typing 'unity --reset' in the terminal but it gets stuck at the line 'Setting Update "fullscreen_visual_bell"'.
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Oct 26, 2010
My wifi connection drops sometimes and, for some reason, Network Manager attempts to connect to my neighbor's network, which requires a password (which I don't know). Is there any way to blacklist a wireless network so that the Network Manager will never attempt to connect to it?
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May 3, 2010
I've been looking at possible options - I might install new from the CD if I have to. But before I do that, I'm wondering if there's anything I can do to restore the system to the way it would have been if I'd actually done a clean install - but to leave /home intact and perhaps the application also. (I haven't installed that many). I'm running 9.10, upgraded from 8.04>8.10>9.04 - it's working but There are some issues I can't seem to resolve such as stuttering audio.
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Jun 13, 2010
When I ran 8.04, force check would be run every 23 boots. The ESCAPE key allowed me to skip it that boot and it would again start force check at the next boot. In 10.04, it gave me an option to use the C key to cancel, but it does not attempt force check at subsequent boots. It does not seem to do an automatic check any more.
How can I restore the original 10.04 setting? Or better yet, get it to perform as it did in 8.04
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Aug 7, 2011
I customized the appearance of my Xubuntu and now I would like to go back to it's default theme. The problem is that I don't know how. I've switched to greybird but it seems that it's not enough.
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Feb 6, 2010
I managed to install the ubuntu One app on my desktop machine and it was working really well, but then it stopped working, when I forgot my password to the default keyring. How do I go about resetting the password to my keyring? Is this possible?
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Feb 9, 2010
Ive been googling for an hour, trying to remove everything named mplayer manually, but with no result. How on earth do i reset mplayer settings the default settings, or how to i remove it completley from my harddrive?
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Jun 24, 2010
I was messing around with Ubuntu trying to make somethings work. Then i rebooted ,and I wasn't able to turn on Visual Effects. So I'm guessing that I must have replaced my video card driver with a non-compatible one or just removed it without knowing. So I was wondering "How Can I Switch Back To The Video Card Driver Ubuntu Came With?" Without reinstalling Ubuntu? Since I was able to at least switch on Visual Effects with it.
And could you also take a look at: [URL]...
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Aug 20, 2010
I accidentally deleted my /etc/fonts/font-config file and now my fonts are all terribly out of whack in several applications including Synaptic, Chromium, Firefox, etc. How do I reset my fonts back to the Lucid Lynx default?
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Sep 1, 2011
I mistakenly told the system to always open Brasserio when I inserted a music cd. Is there a way to reset this choice and make a better one?
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