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Fix Nginx Upstream Connection Refused in Proxy Pass

When Nginx returns a 502 Bad Gateway or logs upstream connection refused

Fix Firefox Secure Connection Failed Error (Mozilla)
When Firefox shows 'Secure Connection Failed' and a message like MOZILLA_PKIX_ERROR_<...

Fix 'fatal: refusing to merge unrelated histories' in Git
You cloned a repository, made some commits locally, and now when you try to git pull...

Checklist for Fixing Windows Search Indexing
If your Windows search is returning no results, taking forever, or missing files, the indexing se...

Checklist for Nginx Configuration Test Failure
When you run nginx -t and get a failure, the server won't reload or restart. Thi...

Fix Nginx 502 Bad Gateway: Upstream Connection Refused
If you're seeing a 502 Bad Gateway error with "upstream connection refused" in your N...


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Fix Chrome ERR_CONNECTION_RESET After Router Reboot
ERR_CONNECTION_RESET: Firewall Blocking Chrome Guide
Fix Microsoft Edge Sync Problem 0x80070424
Resolve DNS Probe Finished NXDOMAIN in Windows 10
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