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Fix Chrome Sync Not Working with Family Link - Cloudflare 521 Error: DNS and Server Checks-Debugging Nginx Infinite Redirects

Updated 2026-07-28 14:53:15office-tools

Fix Chrome Sync Not Working with Family Link - Cloudflare 521 Error: DNS and Server Checks-Debugging Nginx Infinite Redirects

Prepare

Execute

Validate

Document

Operational follow-up

Record the exact option, command, or setting that changed the result.
Keep a rollback note if the workflow affects shared files or team settings.

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