You’ve got a good Internet connection and iCloud should be working fine, but won’t sync data between your Mac and devices. Could it be throttled?
iCloud
If you use apps like Pages and Numbers, and others using macOS versions, those versions can’t be shared across iCloud. Over 13 years, Apple still hasn’t got that working as you’d expect.
Do you keep getting emails from Apple concerning your iCloud account, or problems with its storage? Here’s how to check everything is in order.
Coping with 64-bit code, APFS, the different CPU, the SSV, System Settings, Recovery Mode, and how to get the best from migration and sharing in iCloud.
iCloud Drive in Sonoma has changed beyond all recognition, and is now closely integrated with the FileProvider API. This has important effects, including how you can diagnose problems with the log.
How iCloud Drive, concerned with sharing files, and CloudKit, supporting databases shared in iCloud, have changed in Sonoma.
The small stub files used as placeholders for files evicted to iCloud Drive have vanished. Could that be why some Macs had to download the whole contents of their iCloud Drive?
How to run apps on the host, access iCloud Drive, and get faster file write performance in a macOS VM. And why Spotlight is limited, and the Force Quit dialog a bit odd.
Sonoma’s changes to iCloud can result in very large and protracted syncs, that can block Time Machine backups from completing. Here’s what you can try, and what you shouldn’t do.
At one time, trying to manage iCloud Drive storage was like getting into a lift with only an Up button. What happens then when Apple fixes that bug? Anguish and anger.
The Eclectic Light Company 