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: Module Not Found Error
When you run npm run build and see a Module not found error, the bu...

How to Reset Windows Defender Real-Time Protection
Windows Defender real-time protection can sometimes get stuck, fail to turn on, or stop respondin...

Fix Git 'index.lock' File Exists Error in SourceTree
If you use SourceTree and see an error message like fatal: Unable to create 'path/to/.g...

How to Fix Firefox Secure Connection Failed Error
When Firefox shows 'Secure Connection Failed' and won't load a site, it usually means...

Reset Network Settings in Windows 11 When You Have No Internet
If you're reading this, you probably can't get online in Windows 11. The network icon in ...


    Issue queue
Sitemap
Pass Variables from Docker Compose to Dockerfile
Windows 11 Update Not Progressing? Low Disk Space Fix
Windows Update 0x80070005 Service Not Starting Fix
Windows 11 No Internet but Wi-Fi Connected: DNS Fix
Windows Indexing Repair Checklist
How to Reset Chrome to Fix ERR_NAME_NOT_RESOLVED
Nginx Redirect Loop Troubleshooting
How to Fix Unhit Breakpoints in VSCode Debugging
How to Resolve Git index.lock Permission Denied
Fix npm run Build Failures: Step-by-Step Checklist
Nginx Permission Denied Error for Access Log
Resolve Cloudflare Origin Certificate Error
Desk note

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