Fix Edge Sync Not Syncing Tabs Across Devices - Cloudflare SSL Full vs Flexible: Troubleshooting Mixed Content & Errors-Router DNS Configuration for NXDOMAIN Error

Updated 2026-07-28 13:32:27developer-tools
Fix Edge Sync Not Syncing Tabs Across Devices - Cloudflare SSL Full vs Flexible: Troubleshooting Mixed Content & Errors-Router DNS Configuration for NXDOMAIN 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.