Fix Nginx 502 Bad Gateway: Upstream Connection Refused
If you're seeing a 502 Bad Gateway error with "upstream connection refused" in your N...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFixing Nginx Permission Denied for Root Directory
You've set up a new Nginx server block, pointed the root directive to a directory, and when y...
Docker Build Context Canceled: Fix .dockerignore Mistakes
You're running docker build and after a long wait you see: context cance...
Git Merge Conflict: How to See the Diff Between Versions
When you run git merge and hit a conflict, Git pauses and marks the conflicting file...
How to Access a Shared Folder on Network in Windows 10
If you're trying to open a shared folder from another computer on your network but get an err...
Chrome Won't Open After Update: Step-by-Step Fix
You updated Chrome, and now it won't open—no window, no error, just nothing. This is a common...
Issue queue
SitemapTroubleshoot Docker Volume Permission for Nginx
Git Merge Refusing Unrelated Histories Solution
Shared Folder Not Accessible? Try This Checklist
DNS Probe Finished NXDOMAIN vs Server Not Found: Key Differences
Docker Desktop Sleep Mode Engine Failure Fix
Ubuntu pip install Permission Denied – Quick Fixes
VSCode IntelliSense Not Working for JavaScript: Fixes
Nginx Config Test Failures: Top Causes
How to Show Git Changes in VS Code Source Control
Restore Windows Search Indexing After Upgrade
Fix Git Lock File Not Deleted After Crash
How to Fix Nginx Upstream Connection Refused
Git Merge Refusing Unrelated Histories Solution
Shared Folder Not Accessible? Try This Checklist
DNS Probe Finished NXDOMAIN vs Server Not Found: Key Differences
Docker Desktop Sleep Mode Engine Failure Fix
Ubuntu pip install Permission Denied – Quick Fixes
VSCode IntelliSense Not Working for JavaScript: Fixes
Nginx Config Test Failures: Top Causes
How to Show Git Changes in VS Code Source Control
Restore Windows Search Indexing After Upgrade
Fix Git Lock File Not Deleted After Crash
How to Fix Nginx Upstream Connection Refused