Software troubleshooting desk

Practical fixes for tool errors, setup blocks, and workflow issues.

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fix NET::ERR_CERT_AUTHORITY_INVALID in Chrome Safe Mode

When you see NET::ERR_CERT_AUTHORITY_INVALID in Chrome while running in Safe Mod...

Fix DNS Probe Finished NXDOMAIN on Custom DNS Server

If you see “DNS PROBE FINISHED NXDOMAIN” in Chrome or another browser while using a custom DNS se...

Using Git LFS Migrate on an Existing Repository

If you have a Git repository that already contains large files—like binaries, archives, or datase...

Fixing NGINX Upstream Connection Refused SSL Errors

When NGINX logs upstream connection refused for an SSL backend, it usually means the...

Fix npm ENOENT package.json Not Found Due to Wrong Directory

You run npm install or npm start and get an error like ENOENT: no...

Fix Windows 11 No Internet but Wi-Fi Connected DNS Issue
You see the Wi-Fi icon connected with full bars, but apps, browsers, and system updates all repor...


    Issue queue
Sitemap
How to Unfreeze Windows 11 Installation Assistant
How to Resolve pip Permission Denied on Linux/macOS/Windows
Disable Problematic Shell Extensions to Prevent Explorer Restarts
How to Fix DISM Restore Health When Windows Update Service Is Not Running
Resolve VS Code Source Control Not Detecting Edits
Cloudflare 521: Server Not Responding Fix
Troubleshooting Remote Desktop Certificate Warnings
Pushing Git Detached HEAD to Remote
How to Resolve Node Sass Environment Errors
How to Rebuild Search Index in Windows
How to Clean Install Chrome to Fix Status Access Violation
How to Fix Nginx Permission Denied Error
Desk note

    Troubleshooting paths
Home
Windows FixesmacOS HelpBrowser IssuesOffice ToolsDeveloper ToolsCloud SoftwareSecurity ToolsBackup RecoveryNetwork ToolsDatabase ToolsAI ToolsProductivity AppsCLI ErrorsDocker KubernetesEmail ClientsFile Utilities