Rate this document 
Did this article resolve your issue?
Please provide any comments related to this content.

How to configure McAfee Personal Firewall to allow inbound connections on specific ports


Affected Suites:
All McAfee Windows Security suites

Affected Products:
McAfee Firewall

Affected Operating Systems:
Microsoft Windows 8, 8.1
Microsoft Windows 7
Microsoft Windows Vista
Microsoft Windows XP


This article will help you configure your McAfee software to allow remote connections to your system.



McAfee Personal Firewall has default security levels set to block remotely initiated connections. These settings help protect your computer from malicious activities.

While the default settings allow your computer to access remote computers, they block other computers from accessing your computer. If you would like certain remote computers to be able to connect to your computer, you must configure Personal Firewall to allow the specific incoming connections.

When sharing resources, there are several ways that data access can be restricted:

  • By port (security software such as Personal Firewall) 
  • By settings in your Router (includes a built-in firewall)
  • By your Internet service provider.

NOTE: Connection issues may be related to the default access rules on your router or the maximum number of connections allowed by the router itself. If the router reaches its maximum number of connections, it may refuse subsequent connection attempts. Router connection issues can appear to be a problem with your McAfee software or other applications; however the solution usually requires you to either reset your router or configure your router to allow more concurrent connections. Consult your router documentation for specific instructions before attempting to configure reset your router.

To open the required ports in the McAfee Firewall, perform the steps below.



Open a port

  1. Open your McAfee Windows Security software.
  2. Click Web and Email Protection.
  3. Click Firewall.
  4. Click Ports and System Services
  5. Click Add.
  6. Enter the Program name of the application with the System Service Name field.
  7. Enter a description of the application or service to help identify the new rule.
  8. Enter the TCP or UDP ports required by the application.
  9. Change the drop-down option for the Open ports to: field to All PCs.
  10. Click Save
  11. Verify that the application functions correctly.


  • If you have a local router with a built in firewall, you must configure the same inbound rule to enable the port(s) required by the application to direct the traffic to your computer.
  • Opening ports on both your router and computer can allow undesired connections. You should take extra care to ensure that your system is secure.

Common Ports:

  • 80/TCP: HTTP (HyperText Transfer Protocol), default web server port
  • 3389/TCP: Microsoft Remote Desktop (RDP) officially registered as Windows Based Terminal (WBT)
  • 3724/TCP, UDP: World of Warcraft Online gaming MMORPG
  • 6881-6999/TCP: P2P (Peer to Peer file sharing)

    NOTE: P2P applications can use any port. Check your manufacturer's documentation for the specific port information required.

Previous Document ID