It’s best to first use https://appleid.apple.com to confirm your password works correctly.

When you obtain the next popup, providing to make use of your fingerprint, click on “Use a special Apple ID” (even when it exhibits the right one) so as to enter your password:

As soon as you have verified you’ll be able to register and that there aren’t any error messages on https://appleid.apple.com, notice precisely what password it’s (write it down if it’s important to) and don’t change the password once more, to keep away from confusion.

Signal out of whichever gadget is giving essentially the most frequent errors. It feels like that is your MacBook Air.

Totally signal out of iCloud and restart the Mac, then signal again in.

At this level, your Mac must be behaving correctly. If it’s not, come again right here and point out precisely what steps you took and what it is telling you.

If it is working correctly, repeat the method at signing out of iCloud on another gadgets that are not working correctly.