Wired Device Not Managed Lubuntu 11.10

Nongol lagi masalah karena keseringan di colek-colek, kali ini dapet error Wired Device Not Managed. Langsung aje...

unaisah@Aspire-3620:~$ sudo nano /etc/NetworkManager/NetworkManager.conf 

ganti 

[main]
plugins=ifupdown,keyfile
[ifupdown]
managed=false

jadi

[main]
plugins=ifupdown,keyfile
[ifupdown]
#managed=false
managed=true