Whenever I freshly install Ubuntu I face this Network problem. The Network Manager says that no wired connection is connected. It says that this device is not managed and I wont be able to connect to internet. Here is a workaround that fixes this problem.
Open terminal and type the following :
sudo gedit /etc/NetworkManager/nm-system-settings.conf
and hit enter. Now text editor will open nm-system-settings.conf. Find the line managed=false and replace false with true and save the file (ctrl+s) and close the file. Then open terminal and type the following commands to restart network manager :
sudo service network-manager stop
sudo service network-manager start
Now, your network should be detected. If it didn’t then try restarting your computer. The problem will be solved.
- Thanks to Weegreenblobbie for leaving comment on how to restart network-manager without reboot.
Things to remember :
-
There is no space in the string /etc/NetworkManager/nm-system-settings.conf.
-
The command is case sensitive, so type the string as it is.
If this workaround didn’t worked for you then try another workaround about which I have posted. You can see it here.
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18 Comments
Thanks! You fixed my problem!
thank’s men, this was very helpful
THANK YOU so fuc*** much.. i was searching a whole day before i find your post and only take 10 seconds
thanks again
Thanks a million Weegreenblobbie. You saved me.
Dambaa, from Mongolia
Many thanks. It worked for me on Ubuntu 11.10 – only that the path was /etc/NetworkManager/NetworkManager.conf.
No need to reboot, just stop and start the service again:
sudo service network-manager stop
sudo service network-manager start
Thanks for this information Weegreenblobbie. I’ve updated the article accordingly.
Nice Worked
Your a life saver my file was etc/NetworkManager/NetworkManager.conf
ubuntu 11.xx
but I have been hunting down dead solutions all morning, I was almost forced to work on the half dead laptop I am using to post my comment today.
So, is your problem solved or not?
Thank God for the ubuntu live cd that booted me with a connection and thanks to you I fixed this.
At college i have router automatic connection, but home I have pppoe, and when i went in vacation i had to use pppoeconf, which seems to screwed up with my settings. Now when I came back to the campus, I was in shock, thinking of reinstalling to fix this crap, and I’m so lazy when it comes to backing crap up and doing a clean install.
You saved my as$, thank you! thank you! thank you! thank you! thank you!
You are welcome Moooooo… Ubuntu 9 has made significant changes in both positive and negative ways (issues like this). Let’s hope that Ubuntu 10 fixes them all.
Thanks man, this really worked
Glad it worked for you Marius.
It’s Working for me. Thanks a lot!
The problem came out after I used wireless connection. Wireless worked well, wired all vanished, and I can’t use wired connection any more. It bothered me a lot. Now everything is ok!
I can shift smoothly between wired and wireless by left click on the icon! No restart needed.
thank you for your tips in detail, Samuel!
Hi, did not worked for me. still unmanagged.
im using jaunty and just installed vpn & openvpn.
Is it still unmanaged? where exactly are you facing the problem?
That’s OK Leo! I am also new to Ubuntu and I posting articles keeping in mind how a newbie thinks and what problems will newbies face. I am glad that this helped you. Enjoy Ubuntu!
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[...] workaround for network problems. Before reading this process I strongly encourage you to read this workaround and see whether it fixes your problem or not. If that solution doesn’t work for [...]