Software troubleshooting desk

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

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fixing Nginx Upstream Connection Refused and Permission Denied

If you see connect() failed (111: Connection refused) or connect() failed (13:...

Fix npm run build Failed Due to Webpack Configuration
When npm run build fails, the error often points to a webpack configuration issue. T...

Fix Git Push Rejected: Non-Fast-Forward Error
You try to push your local commits to a remote Git repository, but Git refuses with: ! [rej...

Windows 11 Installation Assistant Stuck at 99%: Fixes That Work
You’re upgrading to Windows 11 via the Installation Assistant, and it gets stuck at 99%. The prog...

Fixing Cloudflare 521 Error After Server Restart
You restart your server, wait for it to come back up, then visit your site—only to see a Cloudfla...

Fixing Nginx 502 Bad Gateway in Docker: Practical Steps
You set up Nginx as a reverse proxy in Docker, but instead of your app you see a 502 Bad Gateway....


    Issue queue
Sitemap
VSCode Bitbucket Git Credential Error Troubleshooting
Chrome Memory Saver and Tab Limits
Windows 11 Installation Assistant Hangs at 99% Fix
Windows 11 Blue Screen After Update? Run DISM Command
Fix VS Code Git Authentication Failure with No Prompt
Fix Windows Defender Real-Time Protection Permission Denied
How to Add Python to PATH in Windows 10 64-bit
Missing Taskbar Icons While Apps Run – Fix
Docker Pull Access Denied on Mac M1: Step-by-Step Fix
Fix Windows 11 Installation Assistant Stuck at 99%
Black Screen in Chrome After Turning Off Hardware Acceleration
How to Handle Merge Conflicts in Visual Studio Code
Desk note

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