Networkmanager-Gnome Crash

[Polo1]

Can anyone help me please?
For a very unknown reason, I noticed that the network manager applet had crashed in Fedora 12 a day ago. Today, when it automatically finds a network to connect the little animation with two green lights fill up but it doesnt fully complete connecting to the network.
WHy is that?

Obviously, I cannot report this crash as I have no internet connection due to this issue.

[sesso]

It happened to me last night.

I just did,

Ifconfig eth0 down
Ifconfig eth0 up

It did fix it. However, I also have a switch the likes to die on me intermittently and my connection will act weird until I reboot the switch.