Ubuntu Networking :: Boot Computer And Network Manager Shos "no Network Devices Available"?
May 10, 2010
Loaded Ubuntu 10.4lucid on TransPort NX Mobile Pentium II, 328MiB,Using Netgear Rangemax wn511b. with Broadcom STA wirless driver. bcm43gx.Boot computer and network manager shos "no network devices available" Run system/administration/hardware drivers and the Broadcom STA driver shows up (only one that shows up) REMOVE and then ACTIVATE and the network manager sees it and connects fine. Shut down computer, restart and no device. I am forced to Remove and Activate each time I start the computer.Is there a way to set this driver to be found and run at computer start.
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Dec 5, 2010
I just loaded 10.10 on an Acer Aspire One D255. When I installed Ubuntu, network manager loaded and I was able to use both the wired and wireless cards. After I used update manager, the kernel was upgraded, and I also added some wireless applications (RutilT WLAN Manager, SWScanner, and WiFi Radar). Upon reboot, the network manager doesn't work, and it cannot find any of the devices.
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Feb 2, 2010
I can't see any of my devices showing up in network manager to configure even though they're using dhcp and working. How do I get them in so I can configure a proxy?
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Dec 23, 2008
I boot linux off a USB stick on many different computers with different hardware. How can I determine in a script which devices eth0, eth1, wlan0 exist and which hardware devices they apply too? Sometimes a wireless card is wlan0, other times it is eth1 or even eth3! The proc/net/dev file does not inidicate which hardware is installed.
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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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Jul 10, 2011
I would like to stop network manager from starting up on boot. I have tried moving
Code:
/etc/init.d/network-manager stop
to rc.local and it did nothing but boot me into the CLI
I have also tried to put
Code:
sudo service network-manager stop and that did nothing also.
After I get network manager to stop on boot up. How do I make it so it will not auto connect to networks? My computer keeps on joining a different network on boot up. And I don't like this as some times I go to my banks website and I am on there network with out realizing it (because of the auto connect) Is there a way to stop this also?
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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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Sep 4, 2009
I wanted to know if i can install mrtg on a client computer in network and measure the network's router traffic.i know that it can be installed on the server.
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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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Mar 2, 2010
I had trouble connecting to a wireless network with openSUSE, so I tried the YAST network manager to see if that fixed it. Not only did it not fix it, but now I cannot connect to any network, wired or wireless. I tried to open the default network manager and it said "Network management disabled". How do I re-enable it?I also have set YAST settings back to their originals with no luck.
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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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May 10, 2011
My Suse server is failing to boot and it is giving the following error:
Mellanox ConnectX Boot over IB v1.9.972
gPXE 0.9.6+ -- Open Source Boot Firmware -- [URL]
No more network devices
I have two network interfaces
Infiniband network and the Ethernet network.
It is a x6275 Sun server.
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Nov 17, 2010
I'm looking for some help on how to troubleshoot the network on Ubuntu 10.04 64 Desktop. It's on a Acer Aspire 721. There's a wireless card but the widget in the top right says there is no network device.
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Jun 6, 2011
Just built a box and once 10.04.2 64 bit was all installed and loaded up I realized instead of showing my Ethernet as connected it had the ol x. So when I clicked on it I got "No network devices available." The mainboard is an Asrock 890GX Pro3, link light completely out.
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Feb 24, 2011
Just installed 11.3 kde. When running the live cd both wireless and ethernet devices appeared in the network connections manager utility. I even connected to a wireless AP.I just booted up for the first time and none of these devices are available. There is no network manager icon in the system tray, and when the network manager utility is maually opened the only connection type i can select is vpn.I know that opensuse should be able to recognize these devices since they were available and working via the live cd, so can anyone help me restore them?
One extra piece of info, is that I am sharing a home directory with a gnome ubuntu install. there were a few minor issues i dealt with initially, but i didnt need to change this user's UID like I have had to do in the past so that's good. Each time i open a terminal I get two pieces of output assuming from the bash startup saying something like.URL...I highly doubt that these problems are related, but figured I'd post. Also if someone knows the solution to that as well, that would save me a bit of googling.
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Oct 5, 2010
I have a system running a very basic LTS install (10.04). Ubuntu has been setup with very little additional packages. No GUI. Once it's booted to a prompt for the first time I add the following packages,
cups cupsys ssh pi memtester nfs-common
aptitude safe-upgrade
At this time I don't have additional information on exactly what packages are installed. I did not perform the installs myself. I will update this thread when I get more details from my IT counterpart on how the system was setup.
This is used for a headless(no monitor, no keyboard) system running some custom applications.
Here are two problems.
1. If I plug into an ethernet network after I boot, the network never connects. I need to reboot with the network connected in order to get an IP. What is the service to "auto connect" to a network?
2. I have a network printer configured on lpd called myprinter. If I am connected to the network when I boot, I can print to this printer just fine using:
Code:
However, If I boot disconnected from the network and print to myprinter, the jobs obviously cannot print. They get spooled. Using 'lpstat -t' I can see that the spooled print jobs are assigned a job number and that myprinter is trying to connect. I shutdown, reconnect my ethernet network and boot up. All my printer configuration is blown away.
/etc/cups/printers.conf has been wiped out to look like this:
Code:
My 'good' printer configuration is copied to printers.conf.O
To recover from this, I need to stop cups, copy printers.conf.O to printers.conf, restart cups, and re-setup my network printer.
So, What causes my printers to get wiped out? I've repeated this on 4 systems with the same setup.
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May 20, 2009
I have the following problem:I have to networks in remote places.I have an opnvpn client in one network that connects to the the router (openvpn server).My question is,can i connect the network where the openvpn client is,throught the computer with the client to the other network.If yes,how? (please make it an idiot proof anwser because i have limited knowledge about iptables). I was thinking like forwarding (the router in the network with the openvpn client is also firewalling with iptables) the request of the ip class of the openvpn network to the computer with the client,which masquarades the interface
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Jul 30, 2011
I am running Ubuntu 9.04 as a partition with windows 7 on a acer aspire 5742, I would like to connect to the internet in Ubuntu, wirelessly, but I am unable to turn my wireless on in Ubuntu, and network manager says "no network connections available". I have the following network adapters:
Atheros AR5B97 Wireless Network Adapter
Broadcom NetLink (TM) Gigabit Ethernet
Microsoft Virtual WiFi Miniport Adapter
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Jan 14, 2010
I've got a co-worker who is trying to connect multiple devices to his wireless router - Xbox, Wii, TV, Dishnetwork box, etc. Not all of the devices are wireless however. He's had several thoughts on how to get this done and I know very little about this kind of thing so I thought I'd ask some of you.
His first thought was to buy a multi port bridge, but he doesn't like any of the ones he's seen so far.The other thought was to connect all of the devices to a switch and then use a single bridge, but he isn't sure if this would work.
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Aug 12, 2010
I'm running Ubuntu 10.04 on a HP Mini 1116nr as expected i have no Wireless access but i also seem to have no wired access either.
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Jan 9, 2010
I am running Ubuntu 9.10 and Windows 7 (Wubi). Windows Networking shows all devices on the network (computers, routers, etc). Is there a way to get Ubuntu to do this (Would prefer GUI)?
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Nov 11, 2010
My wifes networked computer connected to the network just fine when it was Win XP. Now that Ive converted it to 10.04 (completely) it can see the network, but it just wont connect to it. I had no problem converting my computer to Ubuntu and it sees the network and accesses it great. Files, folders and hard drives are all shared. So, one computer connects great, the other does not.**I dont know what to do at this point.Here is the layout:My Comp (10.04) ---------......Main Network Comp (XP)Wife Comp (10.04) -------/The main network computer is XP as it has software on it we need that does not work in Wine. The main computer will have to stay XP. I cannot get my wifes computer to connect to the main system, although mine connects just fine. I dont know what the problem is. Her computer sees the network, but when trying to connect, it times out and says unable to connect.
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Jun 23, 2011
I'm doing a few tests with fedora 15. I'm surprised because they changed the naming way on network devices. eth0 is now called em1.At every fedora I have found the configuration files in /etc/sysconfig/network-scripts, but today I can't find them.
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May 6, 2009
Right now I have this error
On my top right hand corner. No network devices available.
My distro is Centos 5.3
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Jun 30, 2010
I've got three network devices on a laptop:
1. Built-in ethernet LAN
2. Built-in ethernet WLAN
3. PCMCIA ethernet LAN
I installed Ubuntu Server on this computer without the last one inserted.I inserted the last one today, and it lights up when i put in the cable. To be sure if Ubuntu has found it, I tested with the install CD and could see that it found all three at the first part of the installation where I have to chose a primary device.I can't get my WLAN card working, neither do I get my PCMCIA LAN card working. The third card, this PCMCIA card, has worked on Ubuntu Desktop using another laptop. And as said, the setup finds all three.
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Dec 4, 2010
Does anyone know of an application that continually scans for devices on a network and notifies you if a device connects/disconnects to/from the network? I just want a way of knowing when a computer is connected and when it's not.
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Jan 28, 2011
I have not tried this, and I am only wondering about the result.Let's say that I have a PC/Laptop with two network devices: an ethernet and a wireless. Can I connect both of the to the same network (if this network allows both connection) to increase the transfer rate between the PC/Laptop and the server???
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