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❓ Frequently Asked Questions (FAQ)

General

What is NetBoozt?

NetBoozt is an advanced TCP/IP network optimization toolkit that brings Linux-level performance (similar to Google's BBR congestion control) to Windows.

Current version (Tauri v3): ~8 MB, Rust + SvelteKit, modern UI. Legacy version (Python v2.2): ~25 MB, slower startup, CLI-only features.

Is it safe?

Yes! NetBoozt:

  • ✅ Creates automatic backups before changes (new in v2.1)
  • ✅ 100% reversible with one click
  • ✅ Only modifies Windows registry (no binary patching)
  • ✅ No kernel-level drivers required
  • ✅ Open-source (Apache-2.0 License)
  • ✅ 9300+ lines of tested code

Will it void my warranty?

No. NetBoozt only modifies Windows registry settings that are officially documented by Microsoft. These are the same settings network administrators use.

Does it work on my system?

Requirements:

  • Windows 10/11 (Build 19041+)
  • Python 3.10+ (3.13 recommended)
  • Administrator privileges
  • Network adapter with RSS support (most modern adapters)
  • Optional: winotify for Windows notifications

Performance

How much faster will my internet be?

Typical results:

  • Download: +15-20% improvement
  • Upload: +10-15% improvement
  • Latency: -12% to -77% reduction (during downloads)
  • Gaming: Reduced lag spikes by 50-80%

Results vary by ISP, network conditions, and hardware.

Do I need gigabit internet?

No! NetBoozt improves performance on any connection:

  • 50 Mbps: Better streaming, less buffering
  • 100 Mbps: Faster downloads, lower latency
  • 500+ Mbps: Utilize full bandwidth, reduce overhead
  • 1 Gbps+: Get closer to theoretical maximum

Will it help with gaming?

Yes! Benefits:

  • 🎮 Lower ping times (-30% average)
  • 📉 Reduced lag spikes (77% lower latency during downloads)
  • ⚡ Faster packet processing (RSS)
  • 🔄 Better congestion handling (BBR-like)
  • 🔔 Get alerted if latency spikes (new in v2.1)

New Features (v2.1)

What is DNS Auto-Failover?

Automatic switching between 11 DNS servers across 6 tiers if the current one fails:

  • 🔍 Health checks every 30 seconds (parallel, ~3s per full cycle)
  • ⚡ Switches to next healthy server after 2 consecutive failures (~60s total)
  • ⏱️ 30-second cooldown between failovers
  • 🔔 Notification on failover
  • 🎯 11 DNS servers: Cloudflare ×2, Google ×2, Quad9 ×2, OpenDNS ×2, AdGuard ×2, CleanBrowsing

How do Alerts work?

Configurable thresholds that trigger notifications:

  • Latency High: Alert when ping > 100ms (configurable)
  • Packet Loss: Alert when loss > 2%
  • Speed Low: Alert when download < 10 Mbps
  • DNS Failure: Alert on consecutive DNS failures
  • Adapter Errors: Alert on high error rate

Alerts auto-resolve when metrics return to normal.

What are Configuration Backups?

One-click snapshots of your entire network configuration:

  • 💾 DNS servers
  • 💾 IP configuration
  • 💾 TCP global settings
  • 💾 Registry values

Restore to any previous state instantly. Backups saved to ~/.netboozt/backups/

How do Advanced Graphs work?

4 real-time graphs with temporal zoom:

  • Download Speed (Mbps)
  • Upload Speed (Mbps)
  • Latency (ms)
  • Packet Loss (%)

Zoom: 5min, 15min, 30min, 1h, 6h, 24h, 7 days. Intelligent storage (3-2-1 strategy) keeps database small.

Can I switch between Dark/Light theme?

Yes! Go to Settings tab and click the theme toggle button. The entire UI updates instantly.

Installation

Why does my antivirus block it?

Python venv creation involves creating executables, which some antivirus software flags. This is a false positive.

Fix:

# Add project folder to antivirus exceptions
# Then recreate venv:
python -m venv venv --copies

Do I need to run as Administrator?

Yes. Network optimizations require registry modifications that need admin privileges.

Can I use it on WSL?

WSL support is planned for v1.1.0. Currently, NetBoozt optimizes the Windows host only.

Usage

Which profile should I use?

  • 🟢 Conservative: Production servers, stability critical
  • 🟡 Balanced: Recommended for most users
  • 🔴 Aggressive: Gaming, testing, maximum performance

Start with Balanced and upgrade to Aggressive if stable.

Do I need to reboot?

Recommended but not required. Some optimizations (like RSS) take effect immediately, while others (like TCP Window Scaling) require a reboot for full effect.

How do I rollback?

Three methods:

  1. GUI: Click "Restore Defaults" button
  2. CLI: python windows/run.py --reset
  3. Manual: Apply backup JSON from optimizations_backup_*.json

Can I customize optimizations?

Yes! In the GUI:

  1. Go to "Optimizations" tab
  2. Toggle individual optimizations on/off
  3. Click "Apply Selected"

For advanced customization, edit windows/src/optimizations/network_optimizer.py

Troubleshooting

"Access Denied" errors?

You're not running as Administrator.

Fix:

# Right-click PowerShell → "Run as Administrator"
cd L:\NetworkFailover\NetBoozt
.\venv\Scripts\Activate.ps1
python windows/run.py

Venv creation fails?

Usually caused by antivirus blocking.

Fix:

# Add folder to antivirus exceptions, then:
python -m venv venv --copies

GUI doesn't open?

Check dependencies:

pip install -r windows/requirements.txt

# Verify ttkbootstrap:
python -c "import ttkbootstrap; print('OK')"

Speed test not working?

Install speedtest-cli:

pip install speedtest-cli

# Test manually:
speedtest-cli

No performance improvement?

Checklist:

  1. ✅ Rebooted after applying optimizations?
  2. ✅ Used correct profile (try Aggressive)?
  3. ✅ Network adapter supports RSS?
  4. ✅ ISP not throttling?

Run before/after speed tests to measure:

# Before optimization
speedtest-cli > before.txt

# Apply optimizations + reboot

# After optimization
speedtest-cli > after.txt

Advanced

Can I automate NetBoozt?

Yes! CLI usage:

# Apply Balanced profile
python windows/run.py --profile balanced

# Reset to defaults
python windows/run.py --reset

# Run speed test
python windows/run.py --speedtest

For automation, use PowerShell scripts or Task Scheduler.

Does it work with VPN?

Yes, but VPN overhead may reduce gains. NetBoozt optimizes the underlying TCP stack, which VPNs use.

Can I use multiple profiles?

No. Profiles overwrite each other. Choose one profile and stick with it.

How do I contribute?

See CONTRIBUTING.md for:

  • Code style guidelines
  • Testing requirements
  • Pull request process

Is there a paid version?

No. NetBoozt is 100% free and open-source (Apache-2.0 License). No premium features, no telemetry, no ads.

Legal

Is it legal?

Yes. NetBoozt modifies your own computer's settings, which is perfectly legal.

Can I use it commercially?

Yes! Apache-2.0 License permits commercial use. See LICENSE.

Can I redistribute?

Yes, under Apache-2.0 License terms. Attribution required.

Support

Where do I get help?

How do I report bugs?

Open an issue with:

  1. Windows version
  2. Python version
  3. Error message/logs
  4. Steps to reproduce

How do I request features?

Start a discussion describing:

  1. Feature description
  2. Use case
  3. Expected benefit

Still have questions? Ask on GitHub Discussions 💬