I am experiencing similar problems after upgrading my Acer Aspire One to 11.10 from 11.04. Once connected, my E220 will disconnect and reconnect quite reliably provided it continues to be powered on via its USB connection. Howver if I unplug it or depower it by swirching off, I cannot get it to reconnect on 11.10, and I have to go either to Natty or to Windows to get it to work again. From there, a direct restart to 11.10 will deliver it it back in a condition from which it will connect again. More details on ubintuforums.org/showthread.php?t=1868014
I am experiencing similar problems after upgrading my Acer Aspire One to 11.10 from 11.04. Once connected, my E220 will disconnect and reconnect quite reliably provided it continues to be powered on via its USB connection. Howver if I unplug it or depower it by swirching off, I cannot get it to reconnect on 11.10, and I have to go either to Natty or to Windows to get it to work again. From there, a direct restart to 11.10 will deliver it it back in a condition from which it will connect again. More details on ubintuforums. org/showthread. php?t=1868014