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Forwarding ports on your router so devices can talk to the outside world can be a pain in the butt if you have a lot of gear, so it makes sense why a technology like UPnP sounds so convenient. Solved: UPnP on or off ? - NETGEAR Communities I don't have an xbox but do have a ps4 and I see no reason why you shouldn't enable upnp. When the device is off the ports appear closed from the outside. No more dangerous than enabling pot forwarding. Just keep an eye on the upnp portmap table to make sure there are no other devices opening ports without your knowledge. Advanced Troubleshooting: UPnP, Port Forwarding, and NAT Types Players may still need to set up UPnP or Port Forwarding if they experience problems finding other players. Type 3: The console is connected to a router that is blocking the connection to other players and services. Players will need to configure UPnP or Port Forwarding before they can play Destiny. Configure UPnP port forwarding - Google Fiber Help

Apr 05, 2015

Through uPnP WhatsApp establishes peer-to-peer communication to initiate VoIP. uPnP is also a dynamic port forwarding technique so it is active as long as the P2P communication is running. If you disable uPnP in your router, then WhatsApp switches to STUN. It used to be only STUN/TURN in older versions and they recently added uPnP support. What is UPnP? Universal Plug and Play (UPnP) is a protocol that allows apps and other devices on your network to open and close ports automatically to connect with each other. For example, if you want to connect a printer to everyone in your household without UPnP, you would need to connect the printer to every single device. UPnP automates this.

May 22, 2020

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. The function is often called something like “UPnP Port Forwarding” or just “UPnP” but it is also possible that your router manufacturer has chosen to call it something completely different. Modern operating systems have support for UPnP, but it is often disabled and must be enabled before it can be used.