Unable to set a "home xbox" on my xbox

Then that is not the issue. Maybe just give it a few more hours and see if it resolves itself. If not contact
Xbox Support to see if there is something going on with your account.

I have the same problem and have waited over 2 days for it to resolve itself but it still comes up the same

Hello! you could try to delete your profile and reinstall it. Another option would be to do a hard reset.

Hello Michael,

Sorry for the issue with changing your home Xbox. We recommend rebooting your network hardware also. Sometimes hardware just needs to be rebooted due to internet providers doing updates to their equipment.

Thanks,

Brad

You will need to give it a little more time as the message says. Are you sure you haven't already made 5 changes in the last 12 months? If after a bit more time and you are still having issues you can try contacting
Xbox Support for assistance.

Hello there,

We understand that you're experiencing an issue concerning an inability to set the home Xbox on your Xbox One console.

If the problem persists, try doing a soft factory reset of the console,
reset and keep games and apps to help reset the operating system. Please note before doing this troubleshooting step, make sure to know your email and passwords for your Xbox profiles.

Try this out first and let us know the results.