Not connecting new Xbox X

I have been having the same issues, bought a new xbox one X and have been losing connection randomly, never lost connection before with the normal xbox one. When I lose connection it will sometimes say Teredo error or upnp connection error. Totally not
fun, I'm considering buying a new router but if it's the consoles fault I dont know what I'll do. I have already swapped my xbox one X out with another xbox one x from gamestop because I thought the first one was faulty and this did not stop the connection
issue.

Congratulations first on getting Xbox One X.

Yes! you will associate your account or new console and simply connect the external hard drive to ubs 3.0 and follow this guide: https://support.xbox.com/xbox-one/console/set-up-new-xbox-x-solution

My xbox one x is hardwired and is already connected... its older xbox one that is wireless and cant connect... I would hardwire it but it's set up on other side of my place... other systems and devices connect to new wifi router no problem... its just
my old xbox cant connect to new wifi router

Hi there,

you can create a new account by signing out via the Guide button on the controller and pressing 'X' after that press 'X' again to sign in, or select 'create new profile' this will create another profile.

Just keep in mind that every gamer profile needs to be connected to a different Microsoft account (or create an 'offline' account which doesn't connect to Xbox Live.)

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.