Note: End of Life (EOL) has been announced for Box Sync effective December 2026. For more information visit the official announcement page.
Note: Box Sync is not supported on Apple Silicon devices. Users on these devices need to switch to Box Drive.
Upon trying to log into Box Sync, Mac users may receive the error message.
Applicable Environment:
Mac OS computers utilizing Box Sync.
Resolution Steps for Mac OS Sierra and later (Versions 10.12 and later)
- Restart your computer.
- Please try logging into Box Sync again and see if this resolved the issue. If not, please continue on to step number three.
- Open Keychain Access.
- Right click on Box Sync and select "Get info".
- Click on the access control tab at the top of the window.
- Click on Box Sync and then the '-' button.
- Box Sync should disappear from the list under 'Always allow access by these applications'
- Click on the '+' button, which will allow you to browse your computer for the Box Sync application and re-add it to this list. Box Sync will be located in your 'Applications' folder.
- Once you see Box Sync on the list again, please select 'Allow all applications to access this item'.
- If the issue is not resolved, repeat step 3 and select Delete 'Box Sync'.
- Please check and see if the issue is resolved. If not, please submit a case with Box Product Support here and let your assigned agent know you used this help article to do preliminary troubleshooting steps.
Root Cause:
This issue can occur when the keychain is corrupted.
client_swarm_kb