Fixing Nginx 502 Bad Gateway with Docker and Load Balancers
If you're running Nginx as a reverse proxy or load balancer in a Docker setup, a 502 Bad Gate...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesWindows 11 Wi-Fi Connected but No Internet: Step-by-Step Fix
You're connected to Wi-Fi, but websites won't load and apps show no internet. This is a c...
Fix npm Global Install Permission Denied Without Sudo
When you run npm install -g and see "EACCES: permission denied", it's be...
Fix DNS Probe Finished NXDOMAIN Error on Mac
You're browsing on your Mac and suddenly a site won't load, showing the error DNS...
Cloudflare Error 521: Web Server Down Checklist
Cloudflare error 521 means your origin web server refused the connection. This is not a Cloudflar...
Fix Windows Cannot Access Shared Folder Error 0x80070035
When you try to access a shared folder on another computer and see "Windows cannot access \\c...
Issue queue
SitemapResolve Cloudflare SSL Full Strict Origin Errors
Pushing Git Detached HEAD to Remote
How to Resolve Remote Desktop Connection Failed Permission Denied
Nginx Upstream Connection Refused: Diagnosis and Fixes
Troubleshooting Git Clone Timeout in CodeCommit
Remote Desktop Connection Failed 0x80004005 Guide
How to Resolve 'git remote origin already exists' on GitLab
Git Merge vs Rebase Conflicts: A Practical Guide
Fix Bluetooth Problems in Windows 11
How to Resolve Docker Volume Permission Denied on chown
Firefox Not Loading Sites? Fix Secure Connection Failed
Nginx HTTP to HTTPS Redirect Loop Fix
Pushing Git Detached HEAD to Remote
How to Resolve Remote Desktop Connection Failed Permission Denied
Nginx Upstream Connection Refused: Diagnosis and Fixes
Troubleshooting Git Clone Timeout in CodeCommit
Remote Desktop Connection Failed 0x80004005 Guide
How to Resolve 'git remote origin already exists' on GitLab
Git Merge vs Rebase Conflicts: A Practical Guide
Fix Bluetooth Problems in Windows 11
How to Resolve Docker Volume Permission Denied on chown
Firefox Not Loading Sites? Fix Secure Connection Failed
Nginx HTTP to HTTPS Redirect Loop Fix