1. First, you need to press and hold RB on the setting screen until you enter the "Settings" page and go to "Settings". Then select System Settings.
2. Select "Network Settings" from the following screen:
3. Select to test Xbox Live connection
4. After the test, select More Info to know whether you are using an open, medium or strict NAT type.
Extended materials:
Other measures to improve connectivity:
1. Ensure that the firmware of your router has been upgraded to the latest version.
2. Unplug the router and plug it in again after 1 minutes. Some old routers will gradually lose their performance with the increase of use time before restarting, similar to computers.
3. Turn off all firewalls or other network filtering software during play, or open the ports mentioned above.
4. enable or disable the uPnP (universal plug and play) function of the router.
5. completely abandon the router and connect the computer and modem directly (non-wi-fi) with the network cable.
6. If your router is connected to a gateway (the gateway contains a modem and a router), both devices may perform NAT functions at the same time. To solve this problem, please put your gateway in "bridging mode", so that only the router can perform NAT function.
reason: NAT types can be roughly classified into three categories:
Open: you can play online with any NAT type player. Modem: You can play online with players with "Moderate" NAT type. Strict: You can only play with players whose NAT type is "open".
if your NAT type is "strict", you will lose the opportunity to play online with most players. This may lead to higher delay, narrower types of battles, longer waiting time and more frequent disconnection. When the connection conflicts, the game may kick out the players with strict NAT type.
Reference: Baidu Encyclopedia -NAT