Mac desktop
I have the macOS High Sierra, Version 10.13.6. Processor speed 3.5 GHz Intel Core i5, 8 GB. I am getting this message,This Mac can’t connect to iCloud because of a problem with “my email address”. I have changed my p/w in iCloud, but the message still comes up and won't accept my password.
iMac with Retina 5K display, macOS High Sierra (10.13.6), memory 8GB 1600 MHz DDR3