How to Fix Cloudflare Error 522: Connection Timed Out - Outlook Slow Sync with Exchange: Troubleshooting Guide-Fix Windows Update Certificate Trust Error

Updated 2026-06-18 20:41:23office-tools
How to Fix Cloudflare Error 522: Connection Timed Out - Outlook Slow Sync with Exchange: Troubleshooting Guide-Fix Windows Update Certificate Trust Error
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.