How to setup Cloud Sync on Mac
1. Switch Cloud sync to None
2. Restart the Mac
3. Switch Cloud sync back to your cloud account and re-authenticate
If this does not help, then try:
1. Open Network from Settings
2. Press Advanced button
3. Select the Proxies tab
4. Make sure that Bypass proxy settings field contains *.local
3. Select the Proxies tab
4. Make sure that Bypass proxy settings field contains *.local
You can also try these solutions.