Does not work for me I bought a dongle same model but with other way of connection (like usb stick) and does not work neither. No public IP like other models. I open a SR and i await their response and if that work i will post solution.  

  I have same problem with connecting to the internet with an E33372h modem,which according to cisco site is supported by the Cisco RV320 router.   My router recognized the 3G/4G USB dongle, yet I do not have internet connection.   Like other people ...