Fedora Networking :: Fedora 13 X64 Keeps Disconnecting From Network

I've seen many threads of this type, but I didn't see anyone simply say what the problem is. There's got to be something happenning to make it disconnect, and then something else makes it so it can't re-connect.What I get is that it connects for some time (maybe a short time, maybe a longer time) but eventually it just disconnects. When I try to re-connect wpa_supplicat log says simply it's trying to associate with the AP; it's associated with the AP; and then it's disconnected: CTRL-EVENT-DISCONNECTED - Disconnect event - remove keys

It is a home-built with AMD64 and a D-Link DWA-160 A2 (Atheros AR9710) and Netgear extreme 300 router AP. The router log shows it is in fact connecting for a short while only to be disconnected at my computer's request.This is Fedora 13 out of the box (sort of!) except that I have the development repos and the updates repos and the RPM fusion repos installed. I have NM applet running. I use one called simply "network", and also one called "control network devices". but they all lead to the same result that it can't reconnect. If I play with it enough doing any variety of changes I can eventually get it to reconnect, but there's no telling what action was the successful one. I just think it reset whatever was bothering it. But, as I saw another thread describe, if I delete ALL network connection definitions and reboot, it will find the network and it will connect. But sooner or later I'll be back to where it disconnects.So, does anyone actually know what the major malfunction is? It should have been identified and qualified and quantified by now so that there's a simple write-up of cause and fix. But thru all my googling I can't find anything definite. If anyone has some good answer please post it so we all can benefit.