I have suddenly been unable to connect to icloud on my computer. I've changed my password 3 times and each time it says that an unexpected error occurred. My password is fine as I just logged into my account via apple store. I've looked at similar questions here that have not been answered. It would be great for a support person to actually help with this issue.
Macbook G4
These are mostly user to user discussions.
Try setting up another admin user account to see if the same problem continues. Also try the Safe Mode.
Isolating an issue by using another user account
Safe Mode Startup – El Capitan. also Sierra
If it works in the Safe Mode, try running this program when booted normally and then copy and paste the output in a reply. The program was created by Etresoft, a frequent contributor. Please use copy and paste as screen shots can be hard to read. Click “Share Report” button in the toolbar, select “Copy to Clipboard” and then paste into a reply. This will show what is running on your computer. No personal information is shown.
See this article Get help with iCloud - Apple Support
Can't connect to icloud on my computer
