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Troubleshooting

Fix VSCode Terminal Not Opening with Python

You try to run a Python script in VSCode, click the terminal tab, and nothing happens—or the term...

Troubleshooting

How to Fix Cloudflare 521 Error (Port 443 Blocked)

When you see a Cloudflare 521 error, it means Cloudflare’s servers cannot connect to your origin ...

Troubleshooting

Docker Compose Ports Not Working: Common Fixes

You've defined ports in your docker-compose.yml, but containers aren't reachable on the e...

Troubleshooting

How to Fix Docker Pull Unauthorized Access Denied

When you run docker pull and get an "unauthorized: access denied" error, Doc...

Troubleshooting

Fix Nginx Upstream Connection Refused Socket Error

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


                    
                    
                        
                            
                            
                                Troubleshooting
                                Windows 11 Update Stuck at 0%: Manual Download Fix
                                
You click 'Check for updates' in Windows 11, and it hangs at 0% for minutes or hours. Res...



        
            
                
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                    Support Note
                     Test fixes in a non-critical profile first, keep backups for configuration files, and record exact error messages before changing settings.