El Capitan - This Mac can't connect to iCloud because of a problem with "name@email.com" - is occurring frequently with my new installation of the OS
I upgraded my Mac Book Pro (Retina, 13-inch, Mid 2014) to OS X El Capitan (Version 10.11) yesterday, and now I'm getting frequent iCloud error messages:
This Mac can't connect to iCloud because of a problem with "myusername@gmail.com" Open iCloud preferences to fix this problem.
I enter my password, and get no response.
iCloud-OTHER, OS X El Capitan (10.11)