Brother MFC-J3720 Remote Setup Port (COM3) Driver

The Brother MFC-J3720 Remote Setup Port (COM3) driver helps Windows recognize the USB-connected remote setup interface used by Brother software to communicate with your multifunction printer. It is intended for users setting up the MFC-J3720, reinstalling its software, or troubleshooting a missing remote setup port in Device Manager.

Key Features

• Remote setup communication: Supports the connection between compatible Brother configuration software and the MFC-J3720’s remote setup interface.
• USB device recognition: Helps Windows identify the remote setup port correctly rather than showing it as an unknown device.
• Windows compatibility: Listed supported systems include Windows 10, 8.1, 7, Vista, and XP. Choose a package that matches your Windows edition and system architecture.
• Part of the device software setup: Provides support for the remote setup interface; separate drivers or a full Brother software package may be needed for printing and scanning.

How to Install Brother MFC-J3720 Remote Setup Port (COM3) Driver

1. Check your Windows version. Confirm your operating system and whether it is 32-bit or 64-bit. If comparing Windows 10/11 compatibility, note that Windows 11 is not included in the supported OS list provided for this device.
2. Choose the appropriate package. Before starting your Brother MFC-J3720 Remote Setup Port (COM3) driver download for Windows, verify the model, supported operating systems, and package contents. Use a trusted Brother-supplied free download rather than an unrelated driver utility.
3. Run the installer. Extract the files if necessary, then launch the setup program with administrator permission. Follow its prompts to install the required components.
4. Connect the printer when instructed. Turn on the MFC-J3720 and connect it directly to your computer with a USB cable. Follow the installer’s connection timing rather than plugging or unplugging the device repeatedly.
5. Verify the installation. Restart Windows if requested, then check Device Manager for the remote setup port and any warning icons. Windows may assign a COM number other than COM3; that difference alone does not indicate a fault.

Keep the driver updated when Brother provides a compatible release that addresses your needs. Check that the latest version still supports your operating system before you update, especially on older Windows installations, and retain a working installer in case you need to reinstall it.