I'm running Debian "Jessie" 64-bit with gnome 3.8.4 on a Dell Inspiron Mini. I accidentally removed the network-manager, gnome-network-manager, and modemmanager packages. After installing them again, I find that whenever I close the lid (and sometimes when the comuter goes into suspend with lid open), when I sign back in, network-manager isn't working and the gnome network gui reports "unmanaged." When I restart network-manager, it finds my wireless network and reconnects just fine.

Any thoughts? Could I have lost some config elements when I unistalled and reinstalled?

Thanks for any help.

I think network manager is borked. It has been doing this since an update or 2 ago. When the computer suspends or sleeps, network manager dies and won't work until it's manually restarted from the command line. Been happening to me on Debian Sid for awhile, and I see lots of posts about it on forums.