Would you please be able to test if this problem also apply to the latest development version of Ubuntu by testing a daily live CD?: http://cdimage.ubuntu.com/daily-live/current/
I see that it contains a newer version of modemmanager (1.4), which might have solved the problem. ** Changed in: modemmanager (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to modemmanager in Ubuntu. https://bugs.launchpad.net/bugs/1404068 Title: No internet connection with Huawei E3272 4G modem Status in modemmanager package in Ubuntu: Incomplete Bug description: There is no internet connection. My mobile broadband LTE modem is Huawei E3272. Attached a syslog. Ubuntu 14.10 modemmanager 1.2.0-1 This might contain useful information: http://askubuntu.com/questions/525965/huawei-e3272-ubuntu To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/modemmanager/+bug/1404068/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp