I have a #Huawei E5573c #MiFi Hotspot that works well as a network device, without any additional drivers, when I connect it to a Linux PC. However, when I connect it to a #FritzBox as a upstream modem, it will immediately loose its mobile connection and say "No connection". The FritzBox sees the device and the USB communication seems to work – but the mobile connection cuts out, when it's connected to the FB. Any ideas? Is this a provider setting?

