Comment 2 for bug 60162

I am having the same problem with my Edgy Knot 3 installation, and it never occurred in Dapper.

When you resume from suspend and NetworkManager says your wireless card is a wired card, open up a terminal and do "iwconfig". See if your wireless interface is listed as having any wireless extensions. For me, it showed no wireless extensions. After unloading and reloading the ipw2200 module, "iwconfig" was back to correctly reporting wireless extensions. However, at this point NetworkManager failed to re-classify my card as a wireless card.

What commands did you use to restart NetworkManager in order to get it to correctly identify the card again? I tried killing the processes and re-starting them (NetworkManager, NetworkManagerDispatcher, and even nm-applet) but my card was still miss-classified.