Configure the Firewall on macOS

To make sure that the firewall on your mac isn’t blocking Barcode to PC, follow these steps:

1) Open the Security & Privacy settings

Open Spotlight Search using Command + Space and type Security & Privacy


1) Open the Firewall settings

Type firewall in the System Preferences search bar and hit ENTER


2) Click the lock and authenticate your self


3) Click Firwall Options

If Barcode to PC server is already present in the list you don't have to anithing, and you can skip the following steps.

4) Press the + button and select Barcode to PC


5) Click Add and then OK