More testing with older and recent modemmanager revealed that the problem is more likely in network-manager:
Non working modem-manager install modemmanager_0.2.git.20100102t025215.a06b3f2-0ubuntu1~nmt1~karmic_i386.deb reboot 3G connection not working install network-manager_0.8~rc1-0ubuntu1~nmt1~karmic_i386.deb reboot 3G connection working ======= Non working modem-manager install self built modemmanager_0.3-0ubuntu1_i386.deb install network-manager_0.8~rc1-0ubuntu1~nmt1~karmic_i386.deb reboot 3G connection working kill switch 3G connection working ======= Non working modem-manager install modemmanager_0.3-1ubuntu1+tetet_i386.deb install network-manager_0.8~rc1-0ubuntu1~nmt1~karmic_i386.deb reboot 3G connection working kill switch 3G connection working All the time the old network-manager had to be installed. -- ModemManager from PPA not working in Lucid https://bugs.launchpad.net/bugs/509738 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