A solution to this problem may have been found by a poster on an Ubuntu forum (see http://ubuntuforums.org/showthread.php?p=9720270#post9720270) which involves changing the router security scheme from AES+TKIP to AES alone, along with blacklisting rt2800usb.
As long as this doesn't present a security problem in your particular installation it seems to work fine. Please try it and report back on your results.
A solution to this problem may have been found by a poster on an Ubuntu forum (see http:// ubuntuforums. org/showthread. php?p=9720270# post9720270) which involves changing the router security scheme from AES+TKIP to AES alone, along with blacklisting rt2800usb.
As long as this doesn't present a security problem in your particular installation it seems to work fine. Please try it and report back on your results.