NetSecWall Help Center
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Guides for seeing what every app on your PC or phone sends to the internet, blocking what you don't trust, keeping children safe online, and running a whole fleet from one console.
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NetSecWall for WindowsPer-app network monitor and firewall for Windows 10 and 11.
61 articles →
NetSecWall for AndroidFree on-device DNS firewall for Android — beta, coming to Google Play.
2 articles →
Management ServerSelf-hosted console that manages NetSecWall across a fleet — Enterprise beta.
5 articles →
Start here
See which apps are using the internet right now
Open the Live tab in NetSecWall. Every program with an open connection gets a row showing its download and upload rate this second, and the busiest one sorts to the top.
Blocking in NetSecWall: rules and what they actually do
A blocked app isn't killed or changed; it just loses network access. NetSecWall can block an app, a country, a website category or everything, and lists every rule it makes in the Rules tab.
How NetSecWall works: monitoring, blocking and the two engines
NetSecWall watches every connection on your PC by reading Windows' own network events, and blocks only when you ask, through Windows Firewall rules, its own WFP packet filter, or both.
No internet after blocking something? How to get it back
Look at the status bar first. If it ends in "Block-all ON", everything is cut on purpose, so turn it off. If not, one rule is usually to blame, and the Rules tab will show it.
Set up parental controls on a child's PC, step by step
Set a settings password first, then open Protection ▸ Parental controls…, switch protection on, pick website categories, add a bedtime or daily limit if you want, and click Save.
Which plan do I need? Monitor, Plus, Family or Pro
Monitor ($50/yr) shows what connects. Plus ($100/yr) adds threat intelligence and detection. Family ($150/yr) adds blocking and parental controls. Pro ($200/yr) adds the WFP engine and alerts.
Browse by topic 68 articles
Getting startedInstall NetSecWall, get through the first run, and learn your way around the app.
- How NetSecWall works: monitoring, blocking and the two engines
- Your first week with NetSecWall: a day-by-day plan
- System requirements for NetSecWall on Windows
- How to install NetSecWall on Windows 10 or 11
- The welcome screen and setup wizard, step by step
- Keep NetSecWall running 24/7: the background service and the tray
Monitoring & visibilitySee every app’s connections live, and dig into history, DNS lookups, dashboards and reports.
- See which apps are using the internet right now
- Live network monitoring: reading the Live tab
- Reading a connection: ports, states, CDNs and countries
- Network history, search and reports
- Group live traffic by IP, domain, country or category
- Filter the Live tab to find a process, port or threat
Blocking & firewall rulesBlock apps, countries and website categories, and manage every Windows Firewall rule.
- Blocking in NetSecWall: rules and what they actually do
- Filtering modes, profiles and the panic switch
- How to block an app from accessing the internet
- Unblock an app or remove a rule
- Learning mode: approve each new app before it connects
- How to block a country's IP ranges on Windows
Threat detection & alertsThreat-intelligence feeds, behavioral detections, MITRE ATT&CK incidents and alerts.
- Threat intelligence and behavioral detection
- The threat-intelligence feeds NetSecWall uses, and keeping them updated
- The Detections tab: what a risk score means
- Reading the ATT&CK tab: incidents and kill-chain tactics
- Choose your alerts, and get them on your phone
- Check app hashes with VirusTotal and your own IOC list
TroubleshootingFixes for the problems people actually run into.
- Troubleshooting NetSecWall: fixes for common problems
- No internet after blocking something? How to get it back
- The Live tab is empty or shows no transfer rates
- The "another firewall manager" and "Windows Firewall is off" banners
- License key errors and the lock screen
- GeoIP, threat or category lists aren't updating