I have been using ubuntu 11.04 with my usb modem flawlessly. I upgraded to 11.10 a month ago, and since then, the modem is not detected by my computer.
The modem manager does not give me the "enable mobile broadband" option when plugging it in, and the light on the usb modem that indicates it works does not go on. It works on my windows boot on the same machine, so it is not hardware related.
If there are any debugging logs I should post, I will be happy to, but please let me now which (Ubuntu newbie).