Network manager does not work on my Lenovo ideapad S12 (Intel Atom) laptop. I had to replace Network manager to use a network. Will the 12.04 upgrade keep WiCd or will Network Manger now work?
I had a similar problem when I was using 11.10 and here's how I fixed it.
If the issue is with connecting an USB modem then using Gnome PPP dialer will solve your problem.
This is what happened.
Good job for the update manager folks, here.
The systray Wifi icon didn't properly display until I opened >System Settings >Hardware >Network