About Modem Packages:

If you apply this software, systems will be ... you upgrade the version, computers can receive fixes for various network connectivity issues and different vulnerabilities, support for new operating systems and mobile broadband modules, and ... highly recommended to always use the most recent driver version available.

Try to set a system restore point before installing a device driver. This will help if you installed an incorrect or mismatched driver. Problems can arise when your hardware device is too old or not supported any longer.