Fix Windows Defender Real-Time Protection Not Running
You open Windows Security and see a yellow warning: "Real-time protection is off." Or you...
Home / network-tools
network-tools checklist library
Fix Windows 11 WiFi Connected but No Internet After Sleep
You wake your Windows 11 PC from sleep, the WiFi icon shows connected, but you can't load any...
Fixing 'Command Not Found' in VS Code Terminal
You open the integrated terminal in VS Code, type a command you know is installed, and get ...
Fix VS Code Permission Denied on Network Drive
You open a folder on a network drive in VS Code, and when you try to save a file or run a task, y...
Fix Permission Denied on chmod in VS Code Terminal
You're running chmod in the VS Code integrated terminal and seeing 'permissi...
Windows 11 Bluetooth Not Working? 10 Troubleshooting Steps
Bluetooth problems in Windows 11 are common. You might see the Bluetooth icon missing, devices no...
Docker Compose Environment Variable from Shell Not Working: Fixes
You set an environment variable in your shell, but Docker Compose ignores it. This is a common pi...
Fix Windows 11 WiFi with Internet but No Network Access
After a network reset, some Windows 11 users find their WiFi connects but shows "No internet&...
Fix Windows Explorer Restarting After Software Install
If you've just installed a program and Windows Explorer starts restarting repeatedly—taskbar ...
Fix Docker Build Context Canceled Error with Large Directories
When you run docker build on a project with a large directory, you might see an erro...
Fixing NGINX Upstream Connection Refused SSL Errors
When NGINX logs upstream connection refused for an SSL backend, it usually means the...
Fix 'Python Virtual Environment Activate Command Not Found'
When you try to activate a Python virtual environment with source venv/bin/activate ...
Fix Chrome Certificate Error Invalid Authority on Mac
You're browsing in Chrome on a Mac and suddenly see a warning: Your connection is not...
How to Resolve Cloudflare 522 Timeout Error
When you see a Cloudflare 522 timeout error, it means Cloudflare successfully connected to your o...