When working with Time Warner Cable and you want to have the modem in bridge mode so you can install your own firewall behind their modem. You need to call into their tech support and request the following changes:
Then reboot the modem and set your firewall accordingly.
											  Article ID: 242
											  Created: June 21, 2016
											  Last Updated: June 21, 2016
											  Author: Natural Networks NOC [support@naturalnetworks.com]
											
Online URL: https://kb.naturalnetworks.com/article.php?id=242