Why is my multiplayer connection bad on xbox series x, but fine on xbox one

Hi EvanVan, I hope you're doing great out there. I am an Independent advisor and I am here to help you in regard to your concern.

We need to isolate the issue further. But first, let's perform an extended powercycle and reset your network hardware by following the steps below:

1. Unplug the power cable from the back of the router, modem, or gateway for 5 minutes. If you have a router and a modem, unplug the power cable from both devices.

2. Press and hold the Xbox button on your console for 10 seconds or until it turns off then wait for 2 minutes before turning it on again.

3. After 5 minutes, plug the modem or gateway in first, and wait for all the lights to return to their normal state.

4. If you are using a router, plug in the router and wait for all the lights to return to their normal state.

I don't understand on why my original xbox one was fine with 5GHZ but the series x just doesnt want to stay connected to it. And I'm unable to connect an ethernet cable as teh modem/router is no where near my xbox so I dont know how to improve the connection to my xbox

Same on muitiple xbox one x, xbox series x, xbox 360. Internet fine not connecting to xbox network.

The Xbox factory reset on the series X still did not work, it wouldn’t connect to the network. I connected my original Xbox one (2014) back up to my monitor and I was able to play online games just fine on there, same Microsoft account and internet that the series X was not connecting too. My Xbox series x keeps saying it has a hardware issue when trying to connect the internet, I’m pretty sure this proves it’s a physical problem with the hardware on my Xbox. I still have warranty on it and can return it and trade in for a new one. I’ll try doing this and seeing if the trade in one works.

My xbox one exactly the same but my xbox x series is fine and I have used the same settings as my x series annoying 😒