Yesterday I successfully updated my Ubuntu 10.04 installation to 10.10, however today after booting I’ve got no network connection, and in the Network-Manager the Enable Networking was grayed out.
I’ve read lot of forum posts about this problem but in many cases right-click, check Enabled Networking solved the whole mystery.
If you have more serious problem, and those simple configurations doesn’t help, take a look to the file:
Changing the line:
inside the following entries:
solved my problem.
Sure if you are not using wifi connection the last step is unnecessary.
Hope this help.
EDIT: there is another post related to this bug, what’s actually solved my problem. Read more about it here: https://mydailyhash.wordpress.com/2010/10/12/ubuntu-10-10-maverick-meerkat-network-problem-ii/.