Hello @IHFHI, welcome to the forums!

Were you ever able to connect to any server and could you also ensure that your console is on a wired connection?

Are you able to successfully load into a singleplayer session and, if so, can you try connecting to one of the official servers right after?

If possible, we’d also appreciate that you share the specific server numbers for any servers that you’re unable to connect to.

There are no issues on our end regarding the XBOX servers so it’s possible that this might be linked to connectivity issues between your ISP and the server provider.

Could you ensure that your console is on a wired connection?

Have you tried to run a multiplayer connection test?
https://support.xbox.com/en-US/xbox-one/networking/multiplayer-connection-error-solution

Also, please check out what is your current NAT type:
https://support.xbox.com/en-US/xbox-one/networking/nat-error-solution