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 ...
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All notesHow to Enable Bluetooth Service in Windows 11
If Bluetooth suddenly stops working in Windows 11—the icon disappears, devices won't pair, or...
How to Fix Git 'index.lock' File Exists Error
When you see fatal: Unable to create 'path/.git/index.lock': File exists., G...
Fix Node Sass Build Failure: Environment Variable Errors
When you run npm install or a build script and see an error like Node Sass doe...
How to Fix Edge Sync Stuck on Preparing Sync
You open Microsoft Edge, click your profile, and see 'Preparing sync' — but it never fini...
VSCode Terminal Not Opening on Ubuntu: Fixes That Work
You open the integrated terminal in VSCode on Ubuntu, but nothing happens—no shell, no error, jus...
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Fix Cloudflare 521 Error by Adjusting Firewall