To get the most from your Xbox console, we recommend forwarding specific ports recommended by Microsoft. How to port forward your Xbox One, Xbox Series X|S In short, port forwarding can frequently solve many issues related to low-latency games and chats on Xbox. More importantly, port forwarding can be configured on a per-service or per-game basis, tailoring your network setup for the best connectivity with certain experiences. Using user-created rules to forward specific ports, connectivity can be drastically improved. Port forwarding makes your console more accessible over the internet, allowing for traffic to be routed directly to your device.
Ports are essentially digital channels for your router, used for sorting incoming and outgoing internet traffic.