How to fix disconnection issues with X-Box one console when connected with netgear XR500 gaming router?
-Login to router settings using routerlogin.net, under the wireless settings fix the wireless channel to 11 for the 2.4 GHz Band and set the 5 GHz band to channel 153.
Disable dynamic QoS on your netgear router if the problem persists.
Try upgrading the Ethernet to a CAT 6 cable in case of Ethernet connections.
Upgrading the router firmware can also help with such issues.