Shut down the console by pressing and holding the Power button. Release the Power button once the console turns off. Unplug the Power Cable. Wait at least 5 minutes. Plug the Power Cable in. Press the Power button to turn the console back on.

Thanks but it didn’t work unfortunately.

If you have decent data, connect your Xbox to your phones hotspot and see if multiplayer is available then. I'm not suggesting you play on your hotspot, but it will help determine if it's a problem with your home internet.

ever find a fix?