Web server port 443 is being used by another application

The Gateway is prevented from being installed or starting up when the web server port 443 is being used by another application.

To find the application using port 443:

On Windows, type the command:

netstat -aon | findstr 443

On Linux, type the command:

sudo netstat -tulpn | grep :443

 The last column of the output tells you which PID is listening on that port.