Sync.com Not Working? Common Errors & Fixes

Sync.com usually stops syncing because one file is stuck, open in another app, or in a folder with too many files. Update the desktop app, check the Progress tab for the stuck file and move it out of the Sync folder, then pause and resume or restart the app.

Sync.com is slower than Dropbox because files are encrypted on your device and there's no block-level sync, so whole files re-upload on every change. Close resource-heavy apps, keep the app updated, use the desktop app instead of the browser for big transfers, and give large first uploads time.

The 'cannot connect to network' error in the Sync desktop app is most often caused by the network itself, an SSL certificate issue, or an old app version. Update the app, allow third-party SSL certificates in Preferences > Network, and check firewalls and status.sync.com.

Error #1680 appears when a background task (like moving or deleting many files) can't finish because the web panel or desktop app was closed. Keep the app or tab open for 5-10 minutes and retry; if it persists, refresh the web panel and restart the desktop app.

This error means the Sync desktop app can't find your original Sync folder, usually after replacing a drive, reinstalling Windows or changing drive letters. Click Cancel, reconnect any external drive, uninstall and reinstall the app, and let it create a new folder and re-download your files.

When the desktop app pauses with 'There is an issue with your account settings', the usual cause is an outdated app hitting a technical error. Update the Sync desktop app; if the message stays, uninstall and reinstall it and sign in again.

Sync.com camera uploads stall when the phone blocks background activity. Update the app, then on Android allow storage and notification permissions and set battery optimization to 'Don't optimize'; on iPhone set Sync's Location permission to 'Always' so uploads can continue in the background.

Because Sync.com is zero-knowledge, a reset only works if email-based password reset was enabled (default on paid plans) or a desktop app is still signed in. Without either, Sync says the only option is deleting the account and starting again.

Deleted Sync.com files can be restored from the web panel within your plan's file history window (about 30 days free, 90-365 days paid). Open the folder where the file was, show deleted files, select them and restore; older versions are under the file's menu > Version history.

When a Sync.com link won't open or a ZIP download fails, it's usually the browser: extensions, a stale session, or the browser's size limit for one ZIP. Try a private window or another browser, disable extensions, download fewer files at once, and ask the owner to check the link's permissions.

Cancel Sync.com in the web panel under Settings > Account & billing > Manage Subscription > your plan > Cancel Subscription. Cancelling stops auto-renewal and closes the account at the end of the term, which deletes your cloud files. Only new purchases get the 30-day money-back guarantee; renewals aren't refunded.