Each time I switch to manual configuration, of wired connection in Ubuntu 12.10, the save button gets grayed out. As soon as I start setting it in Manually, it gets grayed out.Please help !
One more thing, system continuously displays a message at the top-right corner of the screen, saying:
Wired Network- Not connected
Found the solution: It's a GUI problem: When adding static IP you may end up with an 'invisible' blank line in the list of IP addresses which prevents saving settings - just click below your IP address and delete the blank entry.
The button is greyed-out if there a missing or wrong information filled in the fields. Make sure you put it in like this:
192.168.1.2024192.168.1.1192.168.1.1 (not required for having a save-button)Otherwhise please give us a Screenshot.
I faced the same problem, the way around is to do it from command line.
Go to the file /etc/network/interfaces and change it to
auto eth0
iface eth0 inet static
address xx.xx.xx.xx
netmask xx.xx.xx.xx
gateway xx.xx.xx.xx
dns-nameservers xx.xx.xx.xx
dns-search xx
where you have to fill the xx given by your ISP.
Then from commandline do
sudo ifup eth0
In my experience this happens when information is missing. The so far mentioned answers are correct. I would also like to add additional scenario - wireless. In my case I had a 802.1x. I couldn't save the password I have entered in my setting post-creation of the profile itself. I forgot to add the certificate. After I did that it all worked fine and the Save button was enabled again. In this case I could have also chosen the option not to require a certificate but either way one of both had to be entered as information.
In short - always check if you have entered all the information that is required from you for the network profile you are creating.
