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I'm having real problems having upgraded Ubuntu from 10.04 to 10.10. My main problem is I cannot get a network connection either wired or wireless. When I right click the Network manager applet the Enable Networking check box is greyed out and unchecked.

Any ideas how to resolve this?


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Network Manager may ignore interfaces configured in /etc/network/interfaces, so check that your interface isn't already in there. If it is, remove it and reboot.

Network Manager has a config file for which interfaces to manage at /etc/NetworkManager/nm-system-settings.conf It may have managed=false which you could need to change to true.

The network manager service may not be running. ps -ef | grep NetworkManager If it's not running sudo service network-manager start

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