Fixing Nginx Upstream Connection Refused on Port 443
You see "upstream connection refused" in your Nginx error log when proxying requests to p...
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 Windows 11 Update Stuck at 0 Percent
You click Check for updates, and the progress bar sits at 0% for minutes or hours. This is a comm...
Fix Docker 'network not found' Error for Custom Networks
You create a custom Docker network, then try to run a container attached to it, but get an error ...
Chrome Startup Crash Due to Sandboxing: How to Fix
You open Chrome, it starts to load, then crashes before the window fully appears. This can happen...
Windows Security App Not Opening as Administrator: Fixes
When you try to open the Windows Security app and it fails to launch, often with no error message...
Fix Firefox Secure Connection Failed DNS Error
You try to visit a website in Firefox and see 'Secure Connection Failed' with an error li...
Issue queue
SitemapDocker Access Denied Error 403 Troubleshooting
How to Fix npm Permission Denied in Home Directory
Git Merge Conflict Auto Resolve Not Working: Common Fixes
Why npm Says 'package.json Not Found' and How to Fix It
Docker Container Exits: Permission Denied Fix
Troubleshooting VS Code IntelliSense Failures
Outlook Search Not Working? Check Indexing Steps
Git Merge Conflict: How to See the Diff Between Versions
How to Resolve Git Auth Failed in VS Code with Token
Resolve 'python' Command Not Found After Installing Python 3.10
Registry Permission Repair for Windows Update Error 0x80070005
Resolving Nginx Server Block Test Errors
How to Fix npm Permission Denied in Home Directory
Git Merge Conflict Auto Resolve Not Working: Common Fixes
Why npm Says 'package.json Not Found' and How to Fix It
Docker Container Exits: Permission Denied Fix
Troubleshooting VS Code IntelliSense Failures
Outlook Search Not Working? Check Indexing Steps
Git Merge Conflict: How to See the Diff Between Versions
How to Resolve Git Auth Failed in VS Code with Token
Resolve 'python' Command Not Found After Installing Python 3.10
Registry Permission Repair for Windows Update Error 0x80070005
Resolving Nginx Server Block Test Errors