I can reproduce this behaviour on fresh Jaunty installs on two machines, i386 and amd64 platforms, with the Novatel MC950D USB modem. I assume the problem must be very similar because the symptoms described match the ones I see perfectly. Modem works with wvdial and gnome-ppp, too.
Odd enough, when running in live mode on the installation CD, It detects the USB modem and connects like a charm! Bus 004 Device 003: ID 1410:4400 Novatel Wireless Attaching syslog output during connection attempt ** Attachment added: "syslog output during connection attempt" http://launchpadlibrarian.net/29206835/nm-syslog-mc950d.txt -- NetworkManager 0.7 3g Modem (Dell 5505/Novatel EU740) detected but does not work https://bugs.launchpad.net/bugs/311618 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs