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Troubleshooting

Fix Chrome Certificate Error: Invalid Authority with Proxy Settings

You open Chrome and see NET::ERR_CERT_AUTHORITY_INVALID on every site, even trus...

Troubleshooting

Fix Node Sass Build Failed: Reinstall Steps

If you're seeing a "node sass build failed" error when running npm install or buildin...

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Fix Bluetooth Not Showing in Device Manager on Windows 11

If you open Device Manager on Windows 11 and Bluetooth is completely absent—no adapter listed und...

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Docker Compose: Fix 'Port Already in Use on Host' Error

When you run docker compose up and see an error like port is already allocated...


                    
                    
                        
                            
                            
                                Troubleshooting
                                How to Fix Cloudflare Error 526: Invalid Origin Certificate
                                
If you see Error 526: Invalid SSL Certificate in Cloudflare, it means Cloudflare...
                            
                        
                    
                    
                    
                        
                            
                            
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                                Fix ERR_CERT_AUTHORITY_INVALID on Localhost
                                
When testing a local web app, you may see ERR_CERT_AUTHORITY_INVALID in Chrome or si...



        
            
                
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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.