Mac iCloud Sync Not Working

Overview

Mac iCloud sync issues occur when files, photos, or data fail to synchronize between your Mac and iCloud servers.

Key Details

• Files show upload/download pending indefinitely
• iCloud Drive status stuck on "Uploading" or "Waiting"
• Can affect Documents, Desktop, Photos, and other apps
• May consume excessive bandwidth or storage

Common Causes

• Poor or intermittent internet connection
• iCloud server outage
• Insufficient iCloud storage space
• Corrupted iCloud sync metadata on Mac

Steps

1. 1Check iCloud status at apple.com/support/systemstatus
2. 2Sign out of iCloud and sign back in
3. 3Delete ~/Library/Application Support/CloudDocs/ to reset sync
4. 4Free up iCloud storage if full

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