Firewall Block My Program From Working Properly

Firewall Block My Program From Working Properly

I don’t think totally disabling your Windows Firewall is good for your computer. Doing this exposes your machine from much greater risk. If you have a problem with NAT where the supposed port to be used is blocked by Windows, you just need to fix it with the router and not by disabling the Windows Firewall.

For a brief background, NAT is the short term for Network Address Translation or Network Address Translator. It is the virtualization of the IP addresses which enhances security and lessen the number of IP addresses that an organization requires. Since you have a problem with the NAT ports getting blocked, you need to forward ports on your router.

To do this, first, you need to assign a static IP address on your computer. Click Start, Run, type without quotes “cmd” then hit Enter. In the command prompt window, type without quotes “ipconfig /all” and hit Enter. You should have a similar screen in the image below.

In the result, take note of the following numbers:

• * IP address or IPv4 Address
• * Subnet Mask
• * Default Gateway
• * DNS Servers

To set the static IP address, right-click on the Local Area Connection icon on the system tray and select Status.

On the Local Area Connection Status window, click Properties.

In the Local Area Connection Properties window, scroll down on the list, select Internet Protocol (TCP/IP), and then click Properties.

On the next screen, in General tab, select “Use the following IP address”. Enter the numbers you recorded earlier in their appropriate fields except the IP address field. For the IP address, add 10 to the last digit of your Default Gateway and enter it in the “IP address” field.

For example, if your Default Gateway is 192.168.22.1, the new number is 192.168.22.11. Enter it in the “IP address” field. This is now your new static IP address.

When you are finished, click OK and close other windows. Now, to forward ports on your router, you need to log in to your router’s interface. Fire up your web browser and enter your Default Gateway number in the address field and press Enter. Enter your username and password to log in to your router. Consult your router’s manual for the login details.

If you changed the default login credentials and you no longer remember it, you need to reset your router to restore the default login credentials. To forward ports on your router, look for a tab with a label similar to Applications & Gaming, Advanced, Port Forwarding/Port Triggering, or NAT/QoS.

Under Internal and External, enter the port number you want to forward or enter the range of ports under Start and End. If you are not sure what port to open, consult your application. Several common ports are 25565 for Minecraft, 6881 to 6887 for BitTorrent clients, and 3724 for World of Warcraft. Select TCP or UDP or both under Protocol.

Enter the static IP address you created in the previous steps. Select Enable if it is available and then save the changes. And that’s it.