I'm facing a problem on my Asus laptop with network manager (on Ubuntu 12.10 and 12.04).
Everytime that I reboot my computer, I'm not anymore able to connect to a previously configured wired network. The network configuration is saved and I can see it but the network manager is not able to establish a connection. I have to create a new network and reintroduce the network parameters. It occurs with any wired network, but not with wireless networks.

On the same laptop I have Ubuntu 11.10 installed but I have no problem with network manager.

Any help is really appreciated.


P.S: Sorry for my english.