An unknown error occurred while trying to sign-in Apple ID
Each time I try to log in I get the same message "An unknown error occurred". Apple ID is right and Password is right. Any ideas?
Question marked as
What has changed since this worked properly?
Sometimes this can happen when third party "security" software is activated or installed. Or if login items in the Keychain are incorrectly configured; have you made any changes to the Keychain recently?
Are your other devices working properly with the Apple ID?
Have you booted into safe mode? It clears some caches, which might be storing something that is interfering. Can you log in with your Apple ID when in safe mode?
Finally another thing to try; try logging in as a a different user (you can create a new user for this purpose, and remove it later on), can you then log in with your Apple ID?
Finally, you are on Catalina, correct? (Sometimes older MacOS users have experienced this error due to a certificate problem in their keychain, but I don't think that happens in Catalina, only in High Sierra or earlier.)
