How to configure your Mac Firewall for file sharing

If you have confirmed that folders are shared properly but you still cannot connect, then the macOS firewall may be blocking the network.

Use the following steps to navigate to the firewall control screen.

1. Open the System Settings app and click "Network" then select "Firewall".
2. Click the "Options" button.
3. Ensure that "Block all incoming connections" is unchecked.