Ubuntu 12.04 "waiting for network connection" issue

Hi Guys

Does anyone have a solution to remove the "waiting for network connection" at boot.

any advice would be great.

thanks

1. Edit /etc/network/interfaces:
   
   sudo nano /etc/network/interfaces

1.1 If you are typing this from LXTerminal while logged in to the GUI then:

gksudo leafpad /etc/network/interfaces

1. Remove whatever written there and just keep this:
   auto lo
   iface lo inet loopback

It is very good idea to keep a backup copy of "interfaces" file just in case so please make sure to save a "interfaces.bak" file before you do anything

1. Ctrl + O if you are using nano and Ctrl + S (File > Save) if you are using leafpad.
   
   
2. Ctrl + X if you are using nano and Ctrl + Q (File > Quit) if you are using leafpad.
   
   
3. Reboot.
   
   
4. Done.
   

If you are curious, the /etc/network/interfaces contains network adapters that the system thinks are required for the system to function. Unfortunately this means that NetworkManager does not manage them until upstart brings them up.

There is a way to disable this all together: http://tech.pedersen-live.com/2012/...etwork-configuration-messages-on-ubuntu-boot/
This will stop the system from waiting for network configuration, but will not connect you to any network (if there are no connections available).