Software troubleshooting desk

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

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fix Git Authentication Failed in VS Code on Mac

If you see "Git authentication failed" when pushing or pulling in VS Code on a Mac, the p...

DNS Probe Finished NXDOMAIN: Internet Connection but No Browsing Fix

You see the error 'DNS probe finished NXDOMAIN' on Chrome or other browsers, yet your int...

How to Fix Windows Update Error 0x80070002 by Resetting Components

If you see error 0x80070002 when trying to run Windows Update, the system often cannot find or re...

Fix Chrome ERR_CONNECTION_RESET Due to Proxy Settings

You're browsing in Chrome and suddenly pages won't load, showing ERR_CONNECTION_R...

Fix Nginx 'upstream connection refused' When Talking to PHP-FPM
You're seeing upstream connection refused in your Nginx error log, and your site...

Fix Git SSL Certificate Error: Unable to Get Local Issuer Certificate
When cloning or pulling from a Git repository, you may see:
fatal: unable to access...

Issue queue Sitemap Enable Windows Defender Real-Time Protection Forcibly Fix Git SSL Certificate Problem on Windows: Unable to Get Local Issuer Fix Windows Update Error 0x80070002 Easily Cloudflare Wildcard DNS Setup for Multiple Sites Resolving Python Dependency Hell How to See What Changed During a Git Merge Conflict How to Fix Docker Image Pull Access Denied Error Fixing Nginx 502 Bad Gateway in Docker Networks Git Merge Unrelated Histories Fix Troubleshooting VSCode Debugger Breakpoints After Update Handling Git Merge Conflicts in Lockfiles Common Causes of Nginx Configuration Test Failure Desk note Troubleshooting paths Home Windows FixesmacOS HelpBrowser IssuesOffice ToolsDeveloper ToolsCloud SoftwareSecurity ToolsBackup RecoveryNetwork ToolsDatabase ToolsAI ToolsProductivity AppsCLI ErrorsDocker KubernetesEmail ClientsFile Utilities