Same as OP but I want to mention that "Enable mobile broadband" is also disabled/unchecked by default after every system restart too. After cheking "Enable mobile broadband", mobile broadband starts connecting.
My system information: Ubuntu 11.10 (same as above) Option GT MAX GX301 (0af0:7011) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/874900 Title: "Enable mobile broadband" option gets unchecked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/874900/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs