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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...

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Fix DNS Probe Finished NXDOMAIN on Custom DNS Server

If you see “DNS PROBE FINISHED NXDOMAIN” in Chrome or another browser while using a custom DNS se...

Troubleshooting

Chrome Black Screen Fix When Hardware Acceleration Is On

If Chrome shows a black screen, flickers, or freezes after you enable hardware acceleration, you&...

Troubleshooting

How to Create a Docker Network If Not Found

When you run a Docker container and get an error like network not found, it means th...

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How to Fix Remote Desktop Connection Timed Out Error

When you see "Remote Desktop Connection timed out" after attempting to connect to a remot...

Troubleshooting

Fix Git 'index.lock file exists' Error

When you see the error fatal: Unable to create 'path/.git/index.lock': File exists....



        
            
                
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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.