Self Help > Advanced Troubleshooting: UPnP, Port

Universal Plug and Play (UPnP) is a set of networking protocols that permits networked devices, such as personal computers, printers, Internet gateways, Wi-Fi access points and mobile devices to seamlessly discover each other's presence on the network and establish functional network services for data sharing, communications, and entertainment.UPnP is intended primarily for residential What is UPnP and Why You Need to Turn it Off With enabled UPnP, devices directly forward a port on your router and save you from manually forwarding ports. A good example of the UPnP is a newly brought printer that automatically connects to your phone, tablet, and PC. The Universal Plug and Play brings convenience to your home automation devices. What Is Universal Plug And Play (UPnP)?

Enable the Universal Plug and Play (UPnP) Feature: Select this check box to activate UPnP. Be aware that anyone could use a UPnP application to open the web configurator's login screen without entering the ZyWALL's IP address (although you must still enter the password to access the web configurator).

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