Fixing Nginx Upstream Connection Refused and Permission Denied
If you see connect() failed (111: Connection refused) or connect() failed (13:...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesHow to Fix Git Push Rejected: Non-Fast-Forward Merge
You run git push and get: ! [rejected] main -> main (non-fast-forward)
Windows Update Service Not Running: Registry Fix Guide
If Windows Update fails to run, the service may be disabled or corrupted. This guide covers regis...
Git Fatal: Refusing to Merge Unrelated Histories – Workaround
You try to merge two Git branches and get this error:
fatal: refusing to merge unre...Python Dependency Conflict Troubleshooting Guide
You're working on a Python project and suddenly get errors like ImportError or <...
Fix Windows 11 Update Stuck at 0% with Clean Boot
You start a Windows Update, but it sits at 0% for minutes or hours. This can happen after a faile...
Issue queue
SitemapGit Merge Conflict: How to Keep Both Versions of a File
Stop Windows Explorer from Constantly Restarting
Fix Cloudflare 522 Error by Disabling Proxy Temporarily
Fixing Redirect Loop with Cloudflare Full Strict
Windows Security App Not Opening? Try These Steps
Checklist to Fix npm Permission Denied Errors
Fix Windows Defender Blocked by Another Antivirus
How to Fix Docker Compose Variable Not Set
Reduce Chrome RAM Usage When Watching Videos
Fix Windows Explorer Restarting After Update
VSCode Python Debugger Ignores Breakpoints: Solutions
Chrome Extensions Not Loading: Troubleshooting Guide
Stop Windows Explorer from Constantly Restarting
Fix Cloudflare 522 Error by Disabling Proxy Temporarily
Fixing Redirect Loop with Cloudflare Full Strict
Windows Security App Not Opening? Try These Steps
Checklist to Fix npm Permission Denied Errors
Fix Windows Defender Blocked by Another Antivirus
How to Fix Docker Compose Variable Not Set
Reduce Chrome RAM Usage When Watching Videos
Fix Windows Explorer Restarting After Update
VSCode Python Debugger Ignores Breakpoints: Solutions
Chrome Extensions Not Loading: Troubleshooting Guide