Package: modemmanager Version: 1.4.0-1 I have an USB "3G/4G" modem dongle: huawei E8278s-602.
The modem switch happens properly: from 12d1:14fe to 12d1:1506 The only suspicious dmesg message is: "huawei_cdc_ncm 5-2:1.1: unknown notification 3 received: index 1 len 4" which can happens several times. Then, I configure my broadband connexion in the networkmanager applet with the proper static APN. Everything goes ok (I can see the modem in modem-manager-gui) till the dhcp ip configuration where the USB dongle crashes and is reset. The only way I could make this dongle work is through the wifi/USB ethernet "double NAT" (hides the wan IP which is NATed too), with the APN configuration done with a heavy www browser in the 192.168.1.1 admin interface (no telnet or "lynx" support).
