Connect to MAMP local server (MacBook) from Windows computer

I'm having trouble connecting to a local server hosted on a MacBook/MAMP. My .NET application (running on a Windows computer) smoothly connects to another Windows machine (MySQL server) with the same connection string "server=[computer's name]; user id=xxxx; password=xxxx; database=xxxx" but when I use this MacBook's name, I get the following error:

"Unable to connect to any of the specified MySQL hosts"

Note: File Sharing is turned on

Please help. Thanks!