In file "kern.log", the issue starts from row 627. In file "syslog" starts form row 875.
After these logs, I'm sure that the problem is in the "option" kernel module. I've also tried to update kernel packages, to reinstall udev, usb_modeswitch and so on, but with no result. I'm considering to return back to Ubuntu 10.10. No problems with that version... ** Attachment added: "Kernel log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/772577/+attachment/2132742/+files/kern.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/772577 Title: Kernel in Natty disconnects Huawei E160G, ModemManager can't use it -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs