Hi guys What settings please do I put in port forwarding on add rule on one of my M4's wired to a xbox please

Suddenly have a limited 100MB connection speed on wireless, which was over 300mb, no QOS on the app to check the speed limit etc. Restarted the M4's numerous times. 2 x hard-wired to machines xbox and

Occasionally we received some feedback about the slow LAN speed from Deco and the typical description would be: "my internet bandwidth is over 200/500m/s, but I only got about 100m/s from Deco". After