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internet connection no longer working

Link to this post 22 Apr 11

name and version number of the Linux distro you are using? Ubuntu 10.04

I am connected to my other computer via an ethernet switch hard wired

When you are attempting to reach the internet can you see an icon
or message that states that you are connected to a network? No

it used to work just fine and I may have accidentally changed some setting
can you please help?


Link to this post 22 Apr 11

Might sound stupid but... check that the wire is still connected (unplug and plug it back in )


Link to this post 22 Apr 11

I don't know if it was a mistake or not, but I removed your duplicate post, so, any answers will be in this one thread.

Link to this post 22 Apr 11

It the connection is not showing in the network manager then you may have changed the network addressing from a predefined static or dhcp/dynamic address into an incorrect static address which would cause it not to talk to the router.

After you check the physical connection I recommend for you to check your network settings and change the ipv4 setting method to Automatic( DHCP).

Link to this post 22 Apr 11

If in the output of this command

cat /var/lib/NetworkManager/NetworkManager.state

you'll see that the networking is disabled, delete the NetworkManager.state file (and restart the service)

sudo rm /var/lib/NetworkManager/NetworkManager.state
sudo service network-manager restart

Link to this post 22 Apr 11

I am replying for Andrew.

There was no wired connection and adding one did not bring it back.
But the physical connection is active and activity lights are flashing.

so, there may be a deeper issue, I think it would be best if you gnome guys help him through the deep diagnostics.

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