Fix Nginx Upstream Connection Refused Timeout Error
When Nginx returns 502 Bad Gateway or logs upstream connection refused timeout...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesTroubleshoot Windows Cannot Access Shared Folder
When you try to open a shared folder from another computer and see 'Windows cannot access \\c...
Bluetooth Hardware Not Found on Windows 11: Fixes
You open Bluetooth settings in Windows 11 and see 'Bluetooth hardware not found' – no swi...
Fix Windows Search Index Not Indexing New Files
If you've added new files to a folder but Windows Search can't find them, the search inde...
Fix Cloudflare Wildcard Subdomain Page Rule Not Working
You set up a wildcard subdomain page rule in Cloudflare—like * .example.com/*—but it...
How to Fix WiFi Connected but No Internet on Windows 11
You see the WiFi icon connected, but websites won't load, and apps report no internet. This i...
Issue queue
SitemapHow to Resolve Docker No Space Left on Device
How to Reset Windows Search Index (Step by Step)
Resolve VSCode Permission Denied When Saving Files
How to Fix Windows 11 Installation Assistant 99% Hang
Cloudflare Origin Certificate Troubleshooting Steps
Resolve Git Remote Origin Already Exists
Fix Chrome High Memory Usage: Practical Steps That Work
Docker Build Canceled: Troubleshooting Checklist
Fix Windows Defender Real-Time Protection Not Starting
Git Large File Push Timeout Troubleshooting
Permanently Allow Unrelated Histories in Git Merge
How to Fix 'Refusing to Merge Unrelated Histories' in Git
How to Reset Windows Search Index (Step by Step)
Resolve VSCode Permission Denied When Saving Files
How to Fix Windows 11 Installation Assistant 99% Hang
Cloudflare Origin Certificate Troubleshooting Steps
Resolve Git Remote Origin Already Exists
Fix Chrome High Memory Usage: Practical Steps That Work
Docker Build Canceled: Troubleshooting Checklist
Fix Windows Defender Real-Time Protection Not Starting
Git Large File Push Timeout Troubleshooting
Permanently Allow Unrelated Histories in Git Merge
How to Fix 'Refusing to Merge Unrelated Histories' in Git