Fix Nginx Upstream Connection Refused Socket Error
When Nginx returns a 502 Bad Gateway or logs upstream connection refused
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix DNS Probe Finished NXDOMAIN After Changing DNS
After updating your DNS settings—perhaps to use Google Public DNS or Cloudflare—you might see the...
Fix Chrome Sync Not Working on Android
If Chrome sync has stopped working on your Android device, bookmarks, passwords, and open tabs wo...
Fix 'npm package json not found' Error When Using npx
When you run npx some-package and see an error like “npm package json not found”...
How to Fix Windows Explorer Keeps Restarting
If Windows Explorer (the desktop, taskbar, and file manager) keeps restarting, you'll see the...
Setting Timeouts on Python Requests GET: A Practical Guide
When your Python script makes a GET request and the server is slow or unresponsive, the script ca...
Issue queue
SitemapFix Chrome ERR_CONNECTION_RESET After Router Reboot
How to Fix Git Push Error: File Too Large
Windows Search Not Working After Update Fix
Git SSL Error After Update: Local Issuer Certificate Fix
Troubleshooting nginx proxy_pass connection refused errors
How to Fix pnpm ERR! code EINTEGRITY
Troubleshooting Python Virtual Environment Activation Failure
How to Re-Enable Windows Defender After Malware Attack
How to Fix Windows 11 BSOD After Update with DISM
Cloudflare SSL Full Strict Not Working After Update: Fixes
Docker Build Fails: No Space Left on Device Fix
Windows Explorer Crashing? Diagnostic Steps for Power Users
How to Fix Git Push Error: File Too Large
Windows Search Not Working After Update Fix
Git SSL Error After Update: Local Issuer Certificate Fix
Troubleshooting nginx proxy_pass connection refused errors
How to Fix pnpm ERR! code EINTEGRITY
Troubleshooting Python Virtual Environment Activation Failure
How to Re-Enable Windows Defender After Malware Attack
How to Fix Windows 11 BSOD After Update with DISM
Cloudflare SSL Full Strict Not Working After Update: Fixes
Docker Build Fails: No Space Left on Device Fix
Windows Explorer Crashing? Diagnostic Steps for Power Users