Comment 4 for bug 352150

I'm having similar problems. I also recently updated to the Jaunty beta and I have an IPW2200 wireless card.

After a while my wireless disconnects and I get the same "ipw2200: Firmware error detected. Restarting" error.
I'm attaching an excerpt of my syslog that I took that shows a call trace along with all the error messages.

You'll see that after the problem occured NetworkManager could not reconnect to the network.
I also tried restarting NetworkManager and still could not connect (killall nm-applet, sudo killall NetworkManager, sudo killall wpa_supplicant) and then restarted NetworkManager and nm-applet.
I was able to connect eventually manually using wpa_supplicant and a manually configured /etc/network/interfaces file.
Oddly it didn't work when I ran sudo ifup eth1 but when I ran sudo ifconfig eth1 up, sudo wpa_supplicant -ieth1 -c/etc/wpa_supplicant.conf and sudo dhclient eth1 I was able to connect.