iCloud Photos Sync Paused — Photo Library Not Uploading or Downloading

Overview

Fix iCloud Photos sync paused or stuck where new photos are not uploading to iCloud or downloading to Mac from other Apple devices.

Key Details

• iCloud Photos syncs your entire photo library across all Apple devices and icloud.com
• Initial sync of a large library can take days or weeks depending on library size and internet speed
• Sync pauses when on battery power (MacBooks) or when using a metered connection
• The Photos app shows sync status at the bottom of the Library view
• iCloud storage must have enough space for the entire photo library

Common Causes

• MacBook on battery power — iCloud Photos pauses large uploads to save battery
• iCloud storage full — no space to upload new photos
• Photos app not running — sync only happens when Photos is open or in background
• Network issue or iCloud service outage interrupting the sync

Steps

1. 1Check sync status: open Photos > Library tab > scroll to the bottom for sync status message
2. 2Connect to power if on a MacBook (large syncs pause on battery)
3. 3Check iCloud storage: System Settings > Apple ID > iCloud > verify available space
4. 4Keep Photos app open to allow sync to continue in the background
5. 5If stuck: System Settings > Apple ID > iCloud > Photos > toggle off, wait, toggle on to force re-sync

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