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How to Allow a Program Through Windows Firewall

If a game or app suddenly can't reach the internet, Windows Firewall may be quietly blocking it β€” here's how to add an exception in a few steps.

  1. Open Windows Firewall settings

    Go to Settings > Privacy & security > Windows Security > Firewall & network protection to open the firewall control panel.

  2. Click "Allow an app through firewall"

    This opens the full list of apps and their current network permissions.

  3. Click "Change settings" to unlock the list

    The checkboxes are greyed out by default. Clicking "Change settings" requires administrator access and lets you edit the list.

  4. Find or add the program

    Check the box next to the program if it's already listed, or click "Allow another app" and browse to its .exe file if it isn't.

  5. Choose Private, Public, or both

    Each program can be allowed separately on private networks (home/work) and public networks (cafes, airports) β€” tick whichever applies.

  6. Only allow programs you trust

    Adding exceptions for unknown or unverified software widens your attack surface, so only unblock apps you actually recognize and trust.

Why a trusted app suddenly stops connecting

Windows Firewall blocks by default; a fresh install, a Windows update, or a security software conflict can silently reset an app's permission, which is why a program that worked yesterday can suddenly show a network error today.

Private vs. public network profiles matter

Windows treats your home Wi-Fi and a coffee-shop hotspot as different trust levels. An app allowed only on Private networks will still be blocked the moment you connect to a Public one, which is a common reason a program works at home but not on the road.

Frequently Asked Questions

Is it safe to just turn the firewall off completely?

It's not recommended β€” turning the firewall off entirely removes a major layer of protection. Allowing only the specific program you trust is a much safer fix.

I already have antivirus with its own firewall β€” will they conflict?

Most modern antivirus suites are built to coordinate with Windows Firewall automatically, but if you do run into conflicts, it's best to keep only one firewall active at a time.