[FIX] Error 633: The modem (or other connecting device) is already in use or not configured properl

This tutorial will help you to fix the modem connection issue after the Windows 10 Creator update Error 633: The modem (or other connecting device) is already in use or not configured properly. This error may occur if the communication (COM) port used by the modem has been reserved by another software program, or if multiple Internet connections have been set up.