MacBook Firewall

Hi TechnologyRepeller,

Thanks for posting here in Apple Support Communities. What you're seeing would be expected behavior after turning off firewall protection. You would need to allow incoming connections. Check this out: Block connections to your Mac with a firewall

Set firewall access for services and apps

1. On your Mac, choose Apple menu  > System Preferences, click Security & Privacy , then click Firewall.

If the lock at the bottom left is locked , click it to unlock the preference pane.

2. Click Firewall Options.

If the Firewall Options button is disabled, first click Turn On Firewall to turn on the firewall for your Mac.

3. Click the Add button  under the list of services, then select the services or apps you want to add.

After an app is added, click its up and down arrows to allow or block connections through the firewall.

Blocking an app’s access through the firewall could interfere with or affect the performance of the app or other software that may depend on it.

Important: Certain apps that don’t appear in the list may have access through the firewall. These can include system apps, services, and processes, as well as digitally signed apps that are opened automatically by other apps. To block access for these programs, add them to the list.

When your Mac detects an attempt to connect to an app you haven’t added to the list and given access to, an alert message appears asking if you want to allow or deny the connection over the network or internet. Until you take action, the message remains, and any attempts to connect to the app are denied.

Take care.