Your Mac Finder not showing files issue likely stems from Big Sur’s stricter SMB authentication or compatibility changes. Since you can access as a “guest” and see Time Machine backups, the network connection and device are functioning. The problem is likely with user authentication.
Potential causes:
- SMB encryption requirements (Big Sur may enforce higher security protocols).
- Account permission misconfiguration on the Cloud Home Duo.
- Firmware incompatibility with macOS 11.0.1.
Solutions:
- Update Cloud Home Duo firmware to the latest version.
- Manually connect via SMB in Finder using smb://[IP Address], ensuring the username and password are correct.
- Check SMB settings: In Terminal, run defaults write com.apple.smb.serverPreferredVersions 2 to force SMB2 (if device doesn’t support SMB3).
- Verify permissions on the Cloud Home Duo web interface, ensuring your account has access.
- Temporarily disable the macOS firewall to rule out blocking.
- Contact vendor support for Big Sur-specific fixes or workarounds.
If guest access works but registered login fails, focus on authentication settings (e.g., check if 2FA is enabled or credentials are synchronized). Try resetting the device’s SMB settings or creating a new user account for testing.
