Software blocked by firewall
4.5
The Windows Firewall or a third-party security app is preventing the software from accessing the network.
Symptoms
- "Connection Refused"
- App works when firewall is off
- Security popup
Possible Causes
- Missing firewall rule
- Strict security profile
Step-by-Step Fix
1
Add Exclusion
Go to Firewall settings > Allow an app > Browse to the app's .exe file.
2
Check Third-Party Firewall
If you have Norton/McAfee, check their specific "Program Control" list.
3
Check Network Type
Ensure your network is set to "Private" if you are at home.
When to See a Technician
Firewalls often block "Inbound" connections by default, which breaks apps that act as servers (like games or file shares).
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