not a valid service area

The stick works well finished and was installed quickly via Plug and Play. In making the connection to Vodafone LTE there was first an error message "No valid service area".
On the web was no help to be found, because new drivers and the direct connection to a USB port brought no solution. A call to Vodafone brought the rescue. Our SIM card was indeed already designed for LTE, but the nice man at the hotline have changed an option and now the stick is working perfectly.
One point deduction I admit, because the device is not even listed on the Samsung Service website and because it can cover the adjacent USB slots due to its wide design z. B. on a laptop.