Software troubleshooting desk

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

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

How to Fix Git Push Rejected Non-Fast-Forward

You run git push and get an error like ! [rejected] main -> main (non-fast-...

Fix Git SSL Certificate Verify Failed: Unable to Get Local Issuer
When you see fatal: unable to access '...': SSL certificate problem: unable to get ...

Cloudflare DNS Not Updating After Change: Fixes That Work
You change a DNS record in Cloudflare, wait, and the old IP still resolves. This is a common frus...

Fix Windows 11 WiFi No Internet Due to Antivirus Blocking
If your Windows 11 PC shows full WiFi bars but no internet access, your antivirus might be blocki...

Fix Git 'index.lock' Error in VS Code
If you see the error 'fatal: Unable to create 'path/.git/index.lock': File exists'...

Fix Nginx 502 Bad Gateway Docker Permission Denied
When running Nginx as a reverse proxy in a Docker environment, a 502 Bad Gateway error often poin...


    Issue queue
Sitemap
Resolving 'index.lock File Exists' in Git
Fixing Detached HEAD in Git Using Reset Hard
pnpm Cache Cleanup: When and How
Resolve Git Fatal Refusing to Merge Unrelated Histories
Fix Secure Connection Failed in Firefox
Fix Windows 11 Update Stuck at 0%
Restart Docker Engine After Sleep Mode
How to Resolve Docker Compose Network Missing
Fix Cloudflare Wildcard Subdomain Issues
Node.js Heap Out of Memory vs Stack Overflow Guide
How to Resolve 'git remote origin already exists' on GitLab
Fix VS Code Source Control Not Updating After Save
Desk note

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