This is due to the Network Manager 0.7.0 update. Not everything is compatible with the new Network Manager. This issue is something the team is working on. For a Fix you can do one of two things.
#first open a root terminal
# plug ethernet cable into computer, then reset your NIC/ethernet card and get an IP
ifconfig eth0 down
ifconfig eth0 up
# this should get your NIC an IP address if it doesn't do this
# Now that we have an IP address and are connected to the internet we need to fix the problem. My first choice is USE WICD.
equo install wicd
rc-update add wicd default
#Now we have wicd installed. Now copy an icon from the kmenu (any icon, preferable pertaining to network apps) to the desktop
#now right click the icon and click through the tabs until you find "command" which is the command the icon runs when clicked and replace the #command with "wicd-client" without parenthesis. Now open up konqueror and go to the address bar and go to "/home/(user)/.kde/Autostart"
# and move that icon from your desktop into that folder. You now have a new easy to use network manager doesn't depend on KDE, Gnome,
#or any DE, but can be used in all DEs. Or if you don't like the autostart idea then just run the command "wicd-client" when you login.
#Now if you don't want to use another Network Manager, then just
equo search NetworkManager
#Now find the version that was available before 0.7.0 and equo install that version and refrain from updating to 0.7.0 .
I prefer wicd, as it doesn't depend on networkmanager and is very easy to use. It is very user friendly and can be used in any environment!
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